Is your trusty Dell XPS 15 starting to feel a little sluggish? Perhaps your boot times aren’t what they used to be, or loading those big design files takes forever? You’re not alone! Upgrading your laptop’s storage can make a world of difference, and when it comes to speed, reliability, and value, Sabrent SSDs are often a top pick. If you’re hunting for the Sabrent best 1TB SSD for XPS 15 to breathe new life into your machine, you’ve come to the right place.
The Dell XPS 15 series, known for its sleek design and powerful performance, truly shines when paired with a rapid NVMe SSD. A 1TB drive gives you ample space for your operating system, software, games, and media, ensuring you won’t be running out of room anytime soon. We’ve hand-picked five top contenders that could be the perfect upgrade for your Dell XPS 15, helping you achieve peak productivity and lightning-fast responsiveness. Let’s dive in!
SABRENT Rocket 4 1TB NVMe SSD PCIe Gen4 M.2 2280

The Sabrent Rocket 4 is an absolute powerhouse, designed for users who demand the very best in terms of speed and efficiency. This NVMe SSD leverages the cutting-edge PCIe Gen4 interface, delivering blistering read and write speeds that will transform your XPS 15 into a true workhorse. Whether you’re a content creator handling massive video files, a gamer needing lightning-fast load times, or simply someone who appreciates instant responsiveness, the Rocket 4 is built to impress. Its robust design ensures stable performance even under heavy loads, making it a fantastic internal storage solution for your Dell XPS 15.
Key Features:
– Blazing Gen4 Speed: Experience PCIe 4.0 NVMe performance with up to 7450MB/s read and 6100MB/s write speeds.
– High IOPS, Efficient Design: Delivers up to 850K/800K random IOPS while maintaining low heat and power draw.
– Broad System Compatibility: Single-sided M.2 2280 form factor ensures wide compatibility across desktops, laptops, and PS5 systems.
– Made for Pros and Gamers: Ideal for high-performance systems with demanding workloads.
– Trusted Sabrent Support: Engineered with premium hardware and supports Windows, macOS, and Linux.
Pros:
– Exceptional Gen4 speeds dramatically improve system responsiveness.
– High endurance and stable performance under intense usage.
– Standard M.2 2280 form factor fits perfectly in most XPS 15 models.
– Excellent for professional workloads and serious gaming.
Cons:
– Requires a PCIe Gen4 compatible system to reach its full potential (newer XPS 15 models support this).
– Can run warm under sustained heavy loads, though efficient design helps.
User Impressions: Customers frequently praise the Rocket 4 for its incredible speed, noting significant improvements in boot times, application loading, and file transfers. Many highlight its reliability and easy installation, making it a top choice for a high-performance upgrade.
SABRENT Rocket 2230 1TB NVMe SSD – PCIe Gen4 M.2

While the Sabrent Rocket 2230 is primarily celebrated for its incredibly compact size, making it ideal for devices like the Steam Deck, Surface Pro, and ultra-small laptops, it still packs a significant punch in performance. For most Dell XPS 15 models, which typically utilize the M.2 2280 form factor, this drive isn’t a direct internal replacement. However, if you’re looking for an incredibly fast 1TB drive for a different compact device or perhaps a niche external enclosure, the Rocket 2230 delivers impressive Gen4 speeds and reliable operation in a tiny package. It’s a testament to Sabrent’s engineering prowess, offering high-speed storage where space is at a premium.
Key Features:
– Compact Compatibility: Designed for Steam Deck, Surface Pro, ultrabooks, and other small devices that require M.2 2230.
– High-Speed Gen4 Performance: Achieve speeds up to 5GB/s and 800K IOPS.
– 1TB Capacity: Store more games, apps, and files without relying on slow microSD cards.
– Reliable and Efficient: Built with a new Gen4 NVMe controller and premium 3D TLC NAND, with DRAM-less HMB support.
– Retail-Grade Quality: Includes full warranty, Sabrent Acronis True Image cloning software, and firmware update support.
Pros:
– Unmatched performance in a tiny M.2 2230 form factor.
– Excellent for niche devices and custom builds with space limitations.
– Comes with valuable cloning software.
– Low power usage and cool operation.
Cons:
– Not suitable as a direct internal upgrade for most Dell XPS 15 models (which use M.2 2280).
– Limited compatibility for its primary intended use case.
User Impressions: Users love this drive for its ability to transform handheld gaming devices and ultrabooks, citing remarkable speed improvements and ample storage in a form factor previously underserved. Its reliability and ease of use for its specific applications are frequently praised.
SABRENT 1TB Rocket 4 Plus NVMe 4.0 Gen4 PCIe M.2

When you’re searching for the Sabrent best 1TB SSD for XPS 15 and need something that pushes the boundaries of PCIe Gen4, the Sabrent Rocket 4 Plus is a strong contender. Building on the success of the original Rocket 4, the Plus version offers even higher performance and advanced features for the most demanding users. This drive is engineered for extreme speeds, making it perfect for professionals in video editing, 3D rendering, or intensive data analysis who rely on their XPS 15 for mission-critical tasks. Its advanced wear leveling and error correction features also ensure long-term durability and data integrity, giving you peace of mind.
Key Features:
– NVMe M.2 PCIe Gen4 x4 Interface: Top-tier bandwidth for maximum performance.
– PCIe 4.0 Compliant / NVMe 1.3 Compliant: Ensures broad compatibility and modern feature support.
– Power Management Support: Includes APST / ASPM / L1.2 for efficient power use.
– Advanced Technologies: Supports SMART and TRIM commands, advanced wear leveling, bad block management, ECC, and over-provisioning.
– Free Cloning Software: Comes with Sabrent Acronis True Image for Sabrent for easy data migration.
Pros:
– Peak Gen4 performance with incredible read/write speeds.
– Advanced features enhance drive longevity and data reliability.
– Excellent for heavy-duty professional applications and hardcore gaming.
– Included cloning software simplifies the upgrade process.
Cons:
– Premium price point reflects its high-end performance.
– Maximum performance fully realized only in systems with robust thermal management.
User Impressions: Reviewers consistently highlight the Rocket 4 Plus as a top-tier drive, often noting its superior performance over other Gen4 SSDs. The bundled cloning software is a frequent point of praise, simplifying what could otherwise be a daunting upgrade for many users.
Crucial P3 Plus 1TB SSD, PCIe Gen4 NVMe M.2 2280

While our primary focus is on Sabrent, it’s worth noting that the market offers other excellent options for your Dell XPS 15, and the Crucial P3 Plus 1TB SSD is a fantastic alternative that truly delivers on performance and value. This drive provides solid PCIe Gen4 NVMe speeds, making it a significant upgrade over older Gen3 SSDs and perfect for enhancing your laptop’s overall responsiveness. It’s built with Micron’s trusted quality, ensuring reliability for everyday tasks, gaming, and productivity applications. If you’re comparing options for a fast and dependable 1TB SSD for XPS 15, the Crucial P3 Plus definitely deserves a look.
Key Features:
– PCIe 4.0 Performance: Delivers up to 5,000 MB/s read and 4,200 MB/s write speeds.
– Spacious 1TB SSD: Provides ample space for games, apps, and media.
– Broad Compatibility: Works seamlessly with laptops, desktops, and select gaming consoles (M.2 2280 form factor).
– Better Productivity: Up to 8.9x faster than SATA SSDs, improving bootups and application loading.
– Trusted Micron Quality: Built with advanced Micron 3D NAND and thermal control for reliable performance.
Pros:
– Excellent balance of Gen4 speed and affordability.
– Trusted brand reliability from Micron.
– Significant upgrade over older SATA or Gen3 NVMe drives.
– Compatible with a wide range of devices, including the XPS 15.
Cons:
– Not as fast as the high-end Sabrent Rocket 4 or Rocket 4 Plus.
– Lacks included cloning software (though free alternatives are available).
User Impressions: Users find the Crucial P3 Plus to be a highly dependable and noticeable upgrade, particularly praising its value for money. It’s often recommended for those seeking a modern Gen4 drive without the premium price tag of the absolute fastest options.
SABRENT 1TB Rocket Nano XTRM External SSD, USB 3.2 / Thunderbolt 3

Sometimes, upgrading your internal storage isn’t the only solution. For XPS 15 users who need blazing-fast portable storage, or want to expand their capacity without opening up their laptop, the Sabrent Rocket Nano XTRM External SSD is an unparalleled choice. This isn’t an internal upgrade, but it’s arguably the Sabrent best 1TB SSD for XPS 15 if you need an external drive that’s both incredibly fast and robust. With support for both Thunderbolt 3 and USB 3.2, it offers incredible transfer speeds for professional workloads, massive game libraries, or quick backups on the go. Its rugged, compact design makes it perfect for creative professionals or anyone who needs their data to travel securely at top speed.
Key Features:
– Always Works: Designed with Thunderbolt 3 (40Gbps) for maximum performance, but also compatible with older USB systems (up to 900MBps).
– Speed To Keep Up: Thunderbolt 3 mode connects at 40Gbps for transfer speeds of up to 2700MBps.
– Rugged Portability: Solid aluminum body aids heat dissipation and durability, with an optional silicon sleeve for extra protection.
– Convenience At Your Fingertips: Plug-and-play, bus-powered, no drivers needed, and includes both Thunderbolt and USB-C to USB-A cables.
– It’s Sabrent: Works with Windows and macOS systems, plus other compatible Thunderbolt and USB devices.
Pros:
– Extremely fast external storage with both Thunderbolt 3 and USB 3.2 support.
– Highly portable and durable, ideal for fieldwork or travel.
– No need to open your laptop for storage expansion.
– Bus-powered, meaning no external power adapter is needed.
Cons:
– Not an internal upgrade, so it doesn’t directly replace your laptop’s main drive.
– Higher price point compared to internal SSDs of similar capacity.
User Impressions: Users rave about the Nano XTRM’s incredible speed, noting its ability to handle large video files and applications directly from the external drive without lag. Its robust build quality and compact size are frequently highlighted as major advantages for professionals on the go.
Making Your Choice: The Best 1TB SSD for Your XPS 15
Choosing the right SSD for your Dell XPS 15 depends largely on your specific needs and budget. For those looking for a direct, internal upgrade that maximizes performance, the Sabrent Rocket 4 1TB NVMe SSD or the even more potent Sabrent Rocket 4 Plus 1TB NVMe SSD are fantastic choices, especially if your XPS 15 supports PCIe Gen4. They offer industry-leading speeds that will make everything you do faster and smoother.
If you’re seeking a great balance of Gen4 performance and value, the Crucial P3 Plus is a highly respectable alternative worth considering. And for those who need unparalleled portable storage without modifying their laptop, the Sabrent Rocket Nano XTRM External SSD provides an incredibly fast and rugged solution. Whichever you choose, upgrading to a 1TB NVMe SSD from Sabrent or a comparable brand will undoubtedly elevate your Dell XPS 15 experience.
FAQ Section
Q1: Why should I upgrade my Dell XPS 15’s SSD?
A: Upgrading your XPS 15’s SSD can dramatically improve its performance. You’ll experience faster boot times, quicker application loading, smoother multitasking, and snappier file transfers. If your current drive is older, smaller, or slower (like a SATA SSD), a modern NVMe SSD is one of the most impactful upgrades you can make.
Q2: What type of SSD does the Dell XPS 15 use for internal storage?
A: Most modern Dell XPS 15 models use M.2 2280 NVMe PCIe SSDs. The “2280” refers to the physical size (22mm wide, 80mm long), and “NVMe PCIe” indicates the high-speed interface. Always double-check your specific XPS 15 model’s specifications or consult its manual to confirm compatibility.
Q3: Is a PCIe Gen4 SSD worth it for my XPS 15?
A: If your Dell XPS 15 supports PCIe Gen4 (newer models do), then absolutely! Gen4 SSDs offer significantly faster read and write speeds compared to Gen3 drives. While you might not notice the full difference in everyday tasks, applications involving large file transfers, video editing, or heavy gaming will benefit immensely from the increased bandwidth. Even on a Gen3 system, a Gen4 drive will still work at Gen3 speeds, often with excellent performance.
Q4: How difficult is it to install a new SSD in my Dell XPS 15?
A: Installing an M.2 SSD in an XPS 15 is generally straightforward for someone with basic technical skills. It usually involves removing the laptop’s back cover, unscrewing a single screw holding the existing SSD, swapping it out, and reassembling. However, it’s crucial to follow a reliable guide (like a YouTube tutorial or your laptop’s service manual) to avoid damaging components. Remember to back up your data before starting!
Q5: What’s the difference between an internal and an external SSD for my XPS 15?
A: An internal SSD (like the Sabrent Rocket 4) replaces or adds to the storage inside your laptop, providing the fastest possible speeds and seamless integration. An external SSD (like the Sabrent Rocket Nano XTRM) connects via a USB or Thunderbolt port, offering portable, high-speed storage without opening your laptop. External drives are great for backups, carrying large files, or expanding storage easily, but they don’t impact your laptop’s boot drive performance directly.
Q6: Why should I consider Sabrent for my XPS 15 SSD upgrade?
A: Sabrent has built a strong reputation for producing high-performance, reliable SSDs that offer excellent value. Their Rocket series is particularly well-regarded for its speed and durability. Sabrent often includes useful software (like Acronis True Image for cloning) and provides solid customer support, making them a popular choice for enthusiasts and professionals alike.
Q7: Will a 1TB SSD be enough for my needs?
A: For most users, 1TB offers a generous amount of storage. It’s usually sufficient for your operating system, essential software, a substantial collection of games, and plenty of documents, photos, and even some video files. If you’re a heavy content creator who deals with huge raw video files or massive project libraries, you might consider a larger capacity, but 1TB is a great starting point for a significant upgrade.