Is your Mac running low on storage? Are you constantly battling slow transfer speeds when moving large files like 4K videos, high-resolution photos, or game libraries? If so, investing in a high-capacity external drive, particularly a 4TB external SSD, could be a game-changer. For Mac users, speed, reliability, and seamless compatibility are paramount, and a solid-state drive (SSD) delivers on all fronts, offering a significant performance leap over traditional hard disk drives (HDDs).
While our focus here is squarely on finding the best 4TB external SSD drive for Mac users, we’ve also included a couple of traditional hard drives for those who might prioritize maximum capacity per dollar over blistering speed. Whether you’re a creative professional, a student, a gamer, or just someone who needs more space for backups, a 4TB drive offers ample room for your digital life.
Let’s dive into our top picks, evaluating their features, performance, and what makes each one stand out.
Our Top 10 Picks for Mac External Drives
1. Crucial X10 4TB Portable SSD

The Crucial X10 Portable SSD is an excellent choice for those who demand both speed and rugged durability. Designed with creators, students, and PC gamers in mind, this matte blue external SSD delivers incredibly fast data access, boasting read speeds of up to 2,100MB/s. Unlike slower hard drives, SSDs like the X10 offer a noticeable boost in performance, making large file transfers and heavy workflows a breeze. What truly makes it stand out is its impressive IP65 dust and water resistance, coupled with a drop resistance of up to 9.8 feet (3 meters) – perfect for those on the go or working in unpredictable environments.
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Key Features:
- Ultra-fast Speeds: Up to 2,100MB/s read speeds for quick data access.
- Built to Last: IP65 dust and water resistance, 9.8 ft (3 meters) drop resistance.
- Broad Compatibility: Works with Windows, Mac, iPad Pro, Chromebooks, Android, Linux, PS4, PS5, and Xbox via USB-C and USB-A.
- Ultimate Storage Capacity: Compact 4TB SSD for photos, videos, and backups.
- Bonus Software: Includes three months of Mylio Photos+ and Acronis True Image.
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Pros:
- Exceptional read speeds for rapid file transfers and loading.
- Highly durable and resistant to water, dust, and drops.
- Wide range of device compatibility.
- Compact and portable design.
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Cons:
- Might be overkill for basic storage needs if budget is a concern.
- No integrated cable management.
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User Impressions: Users often praise the Crucial X10 for its blistering speed and peace of mind thanks to its robust build. Many Mac users find it integrates seamlessly, providing the extra space and performance they crave for demanding tasks.
2. WD 4TB My Passport for Mac, Navy, Portable External Hard Drive

While our primary focus is on SSDs, the WD My Passport for Mac is a notable exception as a traditional external hard drive, specifically designed and formatted for Apple ecosystems. If sheer capacity at a more affordable price point is your priority and top-tier SSD speeds aren’t absolutely critical, this drive offers a reliable solution. Its slim, durable design makes it easy to carry your important files, and it comes Mac-ready with USB-C compatibility for effortless connectivity. It’s a great choice for Time Machine backups or archiving large photo and video libraries where instant access isn’t the main concern.
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Key Features:
- Designed for Mac: Pre-formatted and ready to go.
- Slim & Durable Design: Easy to carry.
- Mac-ready and USB-C compatible: Seamless connectivity.
- Vast Capacities: Up to 6TB (this model is 4TB).
- Smart Backup: Includes device management software with ransomware defense.
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Pros:
- Cost-effective per terabyte compared to SSDs.
- Specifically designed for Mac, ensuring smooth integration.
- Includes useful backup and security software.
- Good for large-scale archiving and backups.
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Cons:
- Significantly slower than SSDs (it’s an HDD).
- More susceptible to damage from drops than SSDs.
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User Impressions: Mac users appreciate the plug-and-play simplicity and the specific Mac optimization of this WD drive. It’s often chosen for reliable, budget-friendly bulk storage and backups.
3. Seagate Portable 4TB External Hard Drive HDD – USB 3.0

Another traditional HDD making our list due to its widespread popularity and simplicity, the Seagate Portable 4TB External Hard Drive is the definition of plug-and-play convenience. If you’re looking for an uncomplicated way to expand your storage for backups, documents, or less frequently accessed media files, this drive is a solid, straightforward option. It’s designed to work with both Windows and Mac computers, making it versatile for households with mixed tech, and requires no software installation – just drag and drop your files. It’s a great utilitarian choice if you don’t need the lightning-fast speeds of an SSD.
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Key Features:
- Easy Storage: Store and access 4TB of content on the go.
- Broad Compatibility: Designed for Windows or Mac.
- Simple Backup: Drag and drop functionality.
- Plug and Play: Automatic recognition with no software required.
- Included Cable: Comes with an 18-inch USB 3.0 cable.
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Pros:
- Very easy to use, true plug-and-play.
- Affordable high-capacity storage.
- Works across Windows and Mac platforms.
- Lightweight and portable.
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Cons:
- Traditional HDD speeds are much slower than SSDs.
- Less durable against physical shocks compared to SSDs.
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User Impressions: This Seagate drive is a go-to for many due to its reliability and sheer ease of use. Customers often highlight its simplicity for basic storage and backup needs.
4. SAMSUNG T9 Portable SSD 4TB

When it comes to the best 4TB external SSD drive for Mac, the Samsung T9 is a serious contender, especially for professionals. This drive is built for nonstop speed, enabling creators to race through projects with sustained read and write speeds of up to 2,000MB/s. What’s truly innovative is its Dynamic Thermal Guard, which actively manages and controls heat, ensuring the SSD maintains ideal temperatures even during longer, heavy-duty processes. This means no throttling, just consistent, top-tier performance. It’s also extensively compatible, even supporting iPhone 15 Pro ProRes 4K at 60fps video recording.
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Key Features:
- Nonstop Speed: Sustained read/write speeds up to 2,000MB/s.
- Dynamic Thermal Guard: Maintains optimal temperatures during heavy use.
- Extensive Compatibility: Works with desktops, cameras, gaming consoles, and iPhone 15 Pro.
- Strong, Solid, Stable: Built for longevity and heavy use.
- Magician Software: Ensures optimal performance, firmware updates, and encryption.
- World’s #1 Flash Memory Brand: In-house production of components for reliability.
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Pros:
- Blazing-fast and consistent speeds, even under load.
- Excellent thermal management prevents performance drops.
- Robust build quality for peace of mind.
- Specific support for high-res video recording on iPhone 15 Pro.
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Cons:
- Premium price point due to advanced features.
- Might be overkill for casual users.
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User Impressions: Professionals and power users rave about the T9’s incredible speed and stability, especially when handling massive video files. Its consistent performance under pressure is a frequently highlighted benefit.
5. Crucial X10 Pro 4TB Portable SSD

The Crucial X10 Pro 4TB Portable SSD is another top-tier choice for professional creators who demand nothing less than peak performance and robust protection for their valuable data. Delivering lightning-fast data access with up to 2,100MB/s read and 2,000MB/s write speeds, it ensures a seamless workflow, significantly outperforming any hard drive. What sets the “Pro” version apart is its slightly refined durability and enhanced features for field work: IP55 water and dust resistance, 7.5 ft (2 meters) drop resistance, a convenient lanyard loop, an activity light, and SSD password protection for on-the-go security.
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Key Features:
- Ultra-fast Speeds: Up to 2,100MB/s read and 2,000MB/s write speeds.
- Built to Last: IP55 water/dust resistance, 7.5 ft (2 meters) drop resistance.
- Professional Security: Lanyard loop, activity light, and SSD password protection.
- Broad Compatibility: Works with Windows, Mac, iPad Pro, Chromebooks, Android, Linux, PS4, PS5, and Xbox.
- Massive Storage Capacity: 4TB for high-resolution photos, 4K/8K videos, and projects.
- Bonus Software: Includes three months of Mylio Photos+ and Acronis True Image.
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Pros:
- Exceptional read and write speeds for demanding tasks.
- High-level durability and security features for professionals.
- Compact design perfect for portability.
- Excellent compatibility across various devices.
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Cons:
- Premium price.
- IP55 is slightly less robust than the X10’s IP65, though still very good.
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User Impressions: Content creators frequently praise the X10 Pro for its consistent high speeds and the peace of mind offered by its rugged, secure design, making it an indispensable tool for fieldwork.
6. SAMSUNG T7 Portable SSD, 4TB

The Samsung T7 Portable SSD hits a sweet spot for everyday creators and users who need a powerful yet balanced external storage solution. It’s an ideal best 4TB external SSD drive for Mac if you’re looking for a blend of speed, portability, and excellent value. Embedded with PCIe NVMe technology, it offers impressive read and write speeds up to 1,050/1,000 MB/s—almost twice as fast as its predecessor, the T5. Its compact design is coupled with massive capacity, and it boasts solid aluminum unibody construction with shock resistance and fall protection up to 6 feet, meaning it’s made to withstand adventures. Plus, it supports recording Ultra High Resolution (4K 60fps) videos directly from compatible cameras or mobile devices like the iPhone 15 Pro.
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Key Features:
- Fast Speeds: Up to 1,050/1,000 MB/s read/write.
- Always Make the Save: Compact design with up to 4TB capacity.
- Adapts to Every Need: Extensive compatibility with PCs, mobile phones, and cameras.
- Hi-Resolution Video Recording: Supports 4K 60fps video direct recording.
- All for the Shot: Shock resistance and fall protection up to 6 feet.
- World’s #1 Flash Memory Brand: In-house production for quality you can trust.
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Pros:
- Excellent balance of speed, durability, and price.
- Extremely compact and lightweight.
- Robust shock resistance for daily use.
- Great for direct video recording from cameras/phones.
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Cons:
- Not as fast as the higher-end T9 or Crucial X10/X10 Pro models.
- Some users might prefer a textured grip over the smooth aluminum.
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User Impressions: The T7 is a crowd-pleaser, frequently lauded for its perfect blend of portability, speed, and durability for everyday tasks and creative pursuits. Its compact size makes it a favorite for travel.
7. Crucial X9 Pro 4TB Portable SSD

Another strong contender in the Crucial lineup, the X9 Pro 4TB Portable SSD offers high-speed performance for professional creators, sitting comfortably between the X9 and the X10 Pro in terms of speed. It delivers fast data access with up to 1,050MB/s read and 1,050MB/s write speeds, ensuring a seamless workflow that’s significantly faster than traditional hard drives. Built to last for field work and all-weather shoots, it features IP55 water and dust resistance and is drop resistant up to 7.5 ft (2 meters). This portable drive also includes a lanyard loop, activity light, and SSD password protection for enhanced security on the go, making it a reliable workhorse for busy professionals.
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Key Features:
- High-speed Performance: Up to 1,050MB/s read and write speeds.
- Built to Last: IP55 water/dust resistance, 7.5 ft (2 meters) drop resistance.
- Professional Security: Lanyard loop, activity light, and SSD password protection.
- Broad Compatibility: Works with Windows, Mac, iPad Pro, Chromebooks, Android, Linux, PS4, PS5, and Xbox.
- Bonus Software: Includes three months of Mylio Photos+ and Acronis True Image.
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Pros:
- Consistent and reliable high speeds for demanding applications.
- Excellent durability and security features for professionals.
- Compact and lightweight, ideal for portability.
- Broad device compatibility.
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Cons:
- Faster Crucial models (X10/X10 Pro) are available if absolute top speed is required.
- Might be slightly more expensive than basic 4TB SSDs with similar speeds.
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User Impressions: Users report that the X9 Pro is a dependable and speedy companion for professional tasks, appreciating its balance of performance and ruggedness, especially for outdoor or travel use.
8. SanDisk 4TB Extreme PRO Portable SSD with USB4

If you’re looking for the absolute cutting edge in speed for your Mac, the SanDisk 4TB Extreme PRO Portable SSD with USB4 is arguably the best 4TB external SSD drive for Mac currently available, especially for the latest Mac models with USB4 or Thunderbolt ports. This drive unleashes incredible USB4 speeds, achieving read speeds of up to 3800 MB/s and write speeds of up to 3700 MB/s. It’s also fully backwards compatible with older USB 3.2 and USB 2.0 devices, and importantly, it supports Thunderbolt 4. Beyond its blistering performance, it offers powerful protection with a rugged silicone shell and forged aluminum chassis, helping keep your data safe while on-the-go. A 5-year limited warranty provides outstanding reliability.
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Key Features:
- UNLEASH USB4 SPEEDS: Up to 3800 MB/s read and 3700 MB/s write speeds.
- Backwards Compatibility: Supports USB 3.2, USB 2.0, and Thunderbolt 4.
- Powerful Protection: Rugged silicone shell and forged aluminum chassis.
- Outstanding Reliability: Backed by a 5-year limited warranty.
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Pros:
- Industry-leading speeds, ideal for extreme workflows (e.g., uncompressed 8K video).
- Excellent future-proofing with USB4 and Thunderbolt 4 support.
- Superior durability with robust construction.
- Long warranty period provides peace of mind.
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Cons:
- Premium price reflects cutting-edge technology.
- Requires a USB4 or Thunderbolt port on your Mac to achieve maximum speeds.
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User Impressions: Early adopters and high-end professionals are blown away by the SanDisk Extreme PRO’s raw speed and rugged build, calling it a true game-changer for extremely demanding data tasks.
9. Crucial X9 4TB Portable SSD

The Crucial X9 4TB Portable SSD is an excellent all-around performer, perfect for everyday users, casual gamers, and students who need a reliable and speedy external storage solution. Offering high-speed performance of up to 1050MB/s, it significantly accelerates large file transfers, media editing, and backup processes, easily outperforming traditional hard drives. Like its “Pro” siblings, it’s built to last with IP55 water and dust resistance and is drop resistant up to 7.5 ft (2 meters), making it ideal for travel and ensuring durability wherever you go. Its broad compatibility means it connects effortlessly with your Mac, as well as Windows, iPad Pro, Chromebooks, Android, Linux, PS4, PS5, and Xbox.
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Key Features:
- High-speed Performance: Up to 1050MB/s for fast transfers and editing.
- Built to Last: IP55 water/dust resistance, 7.5 ft (2 meters) drop resistance.
- Broad Compatibility: Works across a wide range of devices via USB-C and USB-A.
- High-Capacity Storage: Compact 4TB SSD for photos, videos, and backups.
- Bonus Software: Includes three months of Mylio Photos+ and Acronis True Image.
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Pros:
- Excellent value for a durable, high-speed 4TB SSD.
- Rugged design for enhanced portability and peace of mind.
- Wide compatibility makes it very versatile.
- Great for everyday use and light creative tasks.
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Cons:
- Not as fast as the X10 or SanDisk Extreme Pro for professional workflows.
- May not be ideal for continuous, heavy 4K/8K video editing if you need the absolute fastest speeds.
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User Impressions: This drive is highly recommended by users for its dependable performance and robust build, often highlighted as a perfect balance between speed, durability, and affordability for daily Mac use.
10. Western Digital 4TB My Passport Ultra for Mac Silver

Rounding out our list, the Western Digital 4TB My Passport Ultra for Mac in Silver is another traditional HDD option, but one that combines style with security, specifically tailored for Mac users. With its innovative design and refined metal cover, it looks right at home next to your Apple devices. It offers USB-C and USB 3.1 compatibility for modern Mac connectivity and includes essential features like password protection with 256-bit AES hardware encryption. This makes it an excellent choice for secure, high-capacity backups and archiving when you don’t need the blazing speeds of an SSD but value data protection and a sleek aesthetic. Just remember to keep your macOS updated for optimal performance.
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Key Features:
- USB-C and USB 3.1 Compatible: Modern connectivity for Macs.
- Innovative Style: Refined metal cover for a premium look.
- Password Protection: With 256-bit AES hardware encryption for security.
- Formatted for Mac: Ready to use with macOS.
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Pros:
- Stylish design complements Mac aesthetics.
- Hardware encryption offers robust security for sensitive data.
- Cost-effective for high capacity storage.
- Reliable for backups and general file storage.
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Cons:
- As an HDD, it’s significantly slower than any SSD.
- More fragile than solid-state drives.
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User Impressions: Mac users who prioritize secure, large-capacity storage and a sleek design often choose the My Passport Ultra, appreciating its reliable performance for backups and its elegant look.
Conclusion: Finding Your Perfect Mac Storage Companion
Choosing the best 4TB external SSD drive for Mac boils down to your specific needs, budget, and how you plan to use the drive. For unparalleled speed and ruggedness, especially if you’re a professional dealing with large media files, the SanDisk Extreme PRO, Samsung T9, or Crucial X10/X10 Pro series are exceptional choices. Their performance truly enhances demanding workflows, making them worth the investment.
If you need a fantastic balance of speed, portability, and value for everyday creative tasks or general storage, the Samsung T7 or Crucial X9/X9 Pro models are incredibly solid options that won’t disappoint.
Finally, if your primary goal is massive storage capacity for backups or archiving less frequently accessed files, and budget is a key consideration, the traditional HDDs like the WD My Passport for Mac or Seagate Portable Drive offer reliable, cost-effective solutions.
No matter which drive you pick, upgrading your external storage will undoubtedly boost your Mac’s capabilities and give you the freedom to create and store more!
FAQ Section
Q1: Why should I choose an SSD over an HDD for my Mac?
A1: SSDs (Solid State Drives) offer significantly faster read and write speeds compared to HDDs (Hard Disk Drives), leading to quicker file transfers, faster application loading, and smoother performance for demanding tasks like video editing or gaming. They are also more durable, quieter, and consume less power. HDDs are generally cheaper per terabyte, making them suitable for bulk storage where speed isn’t critical.
Q2: Is a 4TB external SSD overkill for a casual Mac user?
A2: Not necessarily! While 4TB is a substantial amount of storage, modern digital lives generate a lot of data. If you store many high-resolution photos, 4K videos, large software applications, or want to back up your entire Mac, 4TB can fill up surprisingly fast. It provides ample room for future growth and ensures you won’t quickly run out of space.
Q3: What connectivity options should I look for when buying an external SSD for Mac?
A3: Most modern Macs feature USB-C ports, which support various protocols including USB 3.1, USB 3.2, and Thunderbolt. For the fastest speeds, look for drives that support USB 3.2 Gen 2 (10Gbps), USB 3.2 Gen 2×2 (20Gbps), USB4, or Thunderbolt 3/4. Ensure the drive comes with the appropriate cable (USB-C to USB-C, or includes a USB-A adapter if needed for older Macs).
Q4: Do I need to format an external SSD for my Mac?
A4: Many external drives come pre-formatted for either Mac (e.g., APFS or HFS+) or Windows (e.g., exFAT). Drives specifically “for Mac” are usually ready to go. If a drive is formatted for Windows (NTFS), your Mac can read from it but not write to it without third-party software. For best compatibility and performance, it’s recommended to format the drive to APFS (for macOS 10.13 High Sierra and later) or HFS+ (for older macOS versions) using Disk Utility on your Mac.
Q5: Can I use an external SSD for Time Machine backups?
A5: Absolutely! An external SSD is an excellent choice for Time Machine backups due to its speed. Initial backups will complete much faster, and subsequent incremental backups will also be quicker. Just connect the drive to your Mac, and Time Machine will usually prompt you to use it as a backup disk.
Q6: How important is durability for a portable external SSD?
A6: Very important, especially if you plan to carry the drive around. Unlike HDDs with moving parts, SSDs are inherently more resistant to drops and shocks. However, some SSDs offer enhanced durability features like IP-rated water and dust resistance, or higher drop ratings, which provide extra peace of mind for users who work in the field or travel frequently.
Q7: Are external SSDs compatible with iPads or iPhones?
A7: Yes, many modern external SSDs with USB-C connectivity are compatible with iPad Pro models and the latest iPhones (iPhone 15 Pro/Pro Max) that feature USB-C ports. This allows you to directly transfer files, or even record high-resolution video directly to the SSD, greatly expanding your mobile device’s storage capabilities for creative work.