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A 4TB PCIe 4.0 NVMe SSD is a practical way to add substantial game storage to a compatible desktop. The TeamGroup MP44, WD_BLACK SN850X and Samsung 990 PRO are strong candidates to compare; the WD_BLACK SN7100 is another model worth checking against current listings. There is no verified live-price winner here, and the published speed figures below are manufacturer ratings—not proof that one drive loads games faster.
Check your PC before choosing a drive
These are internal M.2 NVMe SSDs, not external USB drives. Confirm that your motherboard has an available M.2 slot compatible with the drive and supports its PCIe generation. The Samsung 990 PRO is specified as PCIe 4.0 x4; the SN850X and SN7100 4TB models are also documented as PCIe 4.0 x4.
Check the motherboard manual for slot placement, supported drive lengths and any lane-sharing restrictions. The models discussed here use the M.2 2280 form factor where specified. A PCIe 4.0 SSD may work in a compatible slot that supports a different PCIe generation, but it will be limited by the slot and platform; confirm the motherboard’s specifications rather than assuming a particular configuration.
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The SN850X is sold in versions with and without an integrated heatsink. If your motherboard includes an M.2 heatsink, compare its clearance with the SSD variant before buying; do not stack an integrated drive heatsink under the board’s cover. If the board lacks suitable M.2 cooling, a heatsink-equipped version may be convenient, provided it physically fits. Verify the exact regional product SKU and dimensions.
#1 Best Overall
- MEET THE NEXT GEN: Consider this a cheat code; Our Samsung 990 PRO Gen4 SSD helps you reach near max performance* with lightning-fast speeds; Whether you’re a hardcore gamer or a tech guru, you’ll get power efficiency built for the final boss
- REACH THE NEXT LEVEL: Gen4 steps up with faster transfer speeds and high-performance bandwidth; With a more than 55% improvement in random performance compared to 980 PRO, it’s here for heavy computing and faster loading
- THE FASTEST SSD FROM THE WORLD'S #1 FLASH MEMORY BRAND**: The speed you need for any occasion; With read and write speeds up to 7450/6900 MB/s* you’ll reach near max performance of PCIe 4.0*** powering through for any use
- PLAY WITHOUT LIMITS: Give yourself some space with storage capacities from 1TB to 4TB; Sync all your saves and reign supreme in gaming, video editing, data analysis and more
- IT’S A POWER MOVE: Save the power for your performance; Get power efficiency all while experiencing up to 50% improved performance per watt over the 980 PRO****; It makes every move more effective with less consumption
Compare the 4TB options
| Drive | Interface and form factor | Manufacturer-rated sequential read/write | Published endurance and warranty |
|---|---|---|---|
| TeamGroup MP44 4TB | 4TB model; verify the listing and motherboard compatibility for the exact SKU | Not established by the cited sources | Not established by the cited sources |
| WD_BLACK SN850X 4TB | M.2 2280, PCIe 4.0 x4; heatsink and non-heatsink versions | Up to 7,300 / 6,600 MB/s | 2,400 TBW; five-year limited warranty |
| Samsung 990 PRO 4TB | M.2, PCIe Gen 4.0 x4, NVMe 2.0 | Up to 7,450 / 6,900 MB/s | Up to 2,400 TBW; check the exact regional SKU for warranty terms |
| WD_BLACK SN7100 4TB | PCIe Gen 4×4; TLC 3D NAND | Up to 7,000 / 6,700 MB/s | 2,400 TBW; warranty terms not established by the cited data sheet |
Read/write figures are manufacturer-published maximum sequential throughput, not results from a shared gaming benchmark. Samsung’s stated series figures and endurance appeared in its 2023 announcement; check the exact regional 4TB SKU for specifications and terms. SanDisk publishes the SN850X 4TB figures and warranty on its product page and data sheet. The SN7100 figures come from SanDisk’s data sheet. SanDisk SN850X product page · SN850X data sheet · Samsung 990 PRO 4TB product page · Samsung’s 2023 990 PRO 4TB announcement · SN7100 data sheet.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to decide which SSD is best value
Because current street prices and stock are not established, compare the listings available when you buy rather than treating any one drive as the price winner. Calculate the asking price divided by 4TB for a simple cost-per-terabyte comparison, then check whether the listing is for the intended capacity and heatsink version.
Rank #2
- Start your system in seconds: Load files almost instantly, and accelerate the most demanding applications with the Crucial BX500; our dynamic write acceleration technology uses an adaptable pool of high-speed single-level cell flash memory to generate blistering speeds
- Store up to 4TB of data: Save massive amounts of photos, music, and videos comfortably and securely. With fast access to your media, creations, and designs, you’re ready to share at the speed of your life
- Upgrade with reliability: Our heritage of award-winning SSDs are backed by thousands of validation hours, dozens of qualification tests, and a 3-year limited warranty
- Install with confidence: Includes free Acronis True Image HD software for easy data migration. Compatible with the Crucial Storage Executive tool for easy drive maintenance
- Hardware-based encryption: Protect personal files and confidential data from hackers and thieves with 256-bit AES encryption that meets all industry standards, including Microsoft eDrive, IEEE-1667 and TCG Opal 2.0
- Start with the TeamGroup MP44 4TB if you want to consider the model PC Gamer named its “best 4 TB SSD for gaming” in a guide published January 15, 2026. That is PC Gamer’s editorial recommendation, not a comparative result established here. Read PC Gamer’s gaming SSD guide.
- Consider the WD_BLACK SN850X 4TB if its listed price, five-year limited warranty, published endurance and heatsink choice suit your build. SanDisk documents distinct heatsink and non-heatsink variants.
- Compare the Samsung 990 PRO 4TB when its exact regional SKU is available at a competitive price and its platform and cooling fit your system. Its higher headline sequential ratings than the other listed drives do not establish faster game loading.
- Check the WD_BLACK SN7100 4TB listing as another PCIe 4.0 option. Its data sheet gives rated throughput and endurance, but the cited sources do not provide direct comparative gaming-test evidence for it.
For a game library, capacity, compatibility, cooling, warranty and the actual purchase price are more useful decision points than choosing solely by the largest sequential-read number. The available sources do not provide controlled, directly comparable loading tests across these exact 4TB models.
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Quick Recap
Rank #4
- A prime choice for professional gaming upgrades
- Performance enhanced by fourfold, ready to start a game anytime
- TB-level large capacity for worry-free gaming storage
- Exceptional performance and durability
- Optimized operational performance with reliability, improved lifespan and intelligent health monitoring
Rank #3
- 3D NAND flash are applied to deliver high transfer speeds
- Remarkable transfer speeds that enable faster bootup and improved overall system performance. The advanced SLC Cache Technology allows performance boost and longer lifespan
- 7mm slim design suitable for Ultrabooks and Ultra-slim notebooks.
- 3-year limited warranty. (Please register your product via SP official website to get the complete manufacturer warranty services, product support and more.)
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
