Western Digital · Updated July 2026
WD_Black SN7100: price, specs & release date
The WD_Black SN7100 costs $84.99, the cheapest internal ssds (median $239.99). It earns a Gold Deskmark — 82/100 pay-blind standing, #2 of 10 in class.
Verified Jul 11, 2026 · figures linked to their source in the table below
- Best for Strong performance for a DRAM-less HMB design, especially random reads; Five-year warranty.
- Skip if Mediocre all-around performance; not the fastest overall is a dealbreaker.
WD_Black SN7100, released 2025. Every price and spec below is linked to its source and dated — no guesses.
Source: sandisk.com verified ✓ corroborated verify in ledger
Is the WD_Black SN7100 a good buy?
At $85, the WD_Black SN7100 is the cheapest of the 9 internal ssds we track, where the median is $239.99. On the spec sheet, its seq read of 7250 Mbps is below the median of the 10, its seq write of 6900 Mbps is below the median of the 10, and its random read kiops of 1000 is below the median of the 7. By release date, it is among the newer of the 10 we date.
Evidence of Record
Our data- Independent labsmeasured it
- 1
- Physical metricsrecorded
- 1
- Outlets on record1 tested · 1 mention-only
- 2
One independent lab measured this product across 1 physical metric — speed. These numbers rest on a single hands-on source so far; 1 other outlet has it on record by mention only.
Review consensus · sourced & dated
What reviewers say about the WD_Black SN7100
Two whitelisted testers survived verification for the 2TB SN7100: Tom's Hardware and PCWorld. Both credit the drive with strong performance for a DRAM-less HMB design and excellent random reads; Tom's additionally singles out chart-topping power efficiency. They split on the overall verdict and value — PCWorld crowns it the fastest PCIe 4.0/HMB drive it has tested and 'number one for the average user' at an affordable price, while Tom's Hardware calls it 'largely unimpressive' apart from efficiency and flags pricing above competitors, including WD's own faster SN850X. TechPowerUp's draft entry (which had rated it best-in-class) was dropped: the fetched page returned only its intro/specs section, so none of its quotes or measured values could be confirmed.
Tested by Tom's Hardware, PCWorld
Consistently praised
- Strong performance for a DRAM-less HMB design, especially random reads · 2 sources
- Five-year warranty · 2 sources
- Class-leading / chart-topping power efficiency
- Affordable / competitively priced for its class
Commonly flagged
- Mediocre all-around performance; not the fastest overall · 2 sources
- Sustained / post-cache writes drop to a stable ~500MBps to nearly 1GBps on native TLC
- No 4TB option at launch
- Priced above competitors, including WD's own faster SN850X
Where reviewers disagree The value/verdict is genuinely split between the two surviving sources. PCWorld names it 'number one for the average user' and 'affordable,' calling it the fastest PCIe 4.0/HMB drive it has tested. Tom's Hardware, by contrast, rates it only 'competent' and 'largely unimpressive' aside from its power efficiency, and argues its current pricing runs above competitors — sometimes above WD's own faster SN850X. (TechPowerUp, which had crowned it 'the best SSD,' was removed in verification because its fetched page lacked all cited quotes and measured values.)
The sources (2)
The WD Black SN7100 is a competent drive and the successor to the popular SN770, but it's largely unimpressive aside from its chart-topping power efficiency.
Sustained 450GB write (post-cache, native TLC): 500MBps to nearly 1GBps
The WD Black SN7100 was the fastest PCIe 4.0/host memory buffer design we've tested. It's our number one for the average user.
In testing with synthetic benchmarks, the 2TB Black SN7100 proved the fastest PCIe 4.0 host memory buffer (HMB) design SSD we've put through the wringer so far.
While still fast at our 48GB transfers, the SN7100 was not the fastest.
Specifications
| Price (US) | $84.99 Tom's Hardware "WD Black SN7100 SSD Review" spec table lists the 1TB (part WDS100T4X0E) at $84.99 (review-time US price, Feb 2025); the review prose cites $54.99 / $84.98 / $139.99 for the 500GB / 1TB / 2TB SKUs "at the time of review." The Sandisk official product page shows no static USD price (price is JS-loaded), and Amazon's page geolocated to EUR, so USD price is taken verbatim from the dated review for the 1TB capacity. |
|---|---|
| Brand | Western Digital |
| Released | 2025 |
| Capacity options (TB) | 0.5, 1, 2, 4 |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4 NVMe |
| Seq read (Mbps) | 7250 |
| Seq write (Mbps) | 6900 |
| Random read kiops | 1000 |
| Random write kiops | 1400 |
| Nand type | 3D TLC |
| Has dram cache | No |
| Endurance tbw | 600 |
| Warranty years | 5 |
Source: sandisk.com (verified 2026-07-11) · corroborated by tomshardware.com. The Sandisk official product page (source; the WD_Black line is now hosted on Sandisk.com) lists the 1TB SKU WDS100T4X0E-00CJA0 with M.2 2280 form factor, PCIe Gen 4.0 interface, 7250MB/s read, 6900MB/s write, 1000K/1400K random read/write IOPS, "next generation TLC 3D NAND," a "DRAM-less" design, and a 5-Year Limited Warranty, and enumerates 500GB/1TB/2TB/4TB capacities in its model-number list. Tom's Hardware's dated review (corroboration) independently confirms the exact 1TB part number WDS100T4X0E with matching sequential/random figures plus PCIe 4.0 x4 / NVMe 1.4, DRAM "N/A (HMB)," 600TB endurance for the 1TB, and a review-time price of $84.99 — and Newegg's listing further corroborated the 600TBW 1TB endurance and PCIe 4.0 x4 NVMe interface. Model identity is verified by the WDS100T4X0E part number appearing verbatim across all three fetched pages.
Is the WD_Black SN7100 worth it vs cheaper internal ssds?
WD_Black SN7100 against its closest cheaper and pricier internal ssds on the specs that matter — every value sourced. See all 9 ranked →
| Product | Price | Capacity options (TB) | Form factor | Interface | Seq read (Mbps) | Seq write (Mbps) |
|---|---|---|---|---|---|---|
| WD_Black SN7100 this | $84.99 | 0.5, 1, 2, 4 | M.2 2280 | PCIe 4.0 x4 NVMe | 7250 | 6900 |
| WD_Black SN8100 | $179.99 | 1, 2, 4, 8 | M.2 2280 | PCIe 5.0 x4 NVMe | 14900 | 14000 |
Frequently asked questions
What do reviewers say about the WD_Black SN7100?
Two whitelisted testers survived verification for the 2TB SN7100: Tom's Hardware and PCWorld. Both credit the drive with strong performance for a DRAM-less HMB design and excellent random reads; Tom's additionally singles out chart-topping power efficiency. They split on the overall verdict and value — PCWorld crowns it the fastest PCIe 4.0/HMB drive it has tested and 'number one for the average user' at an affordable price, while Tom's Hardware calls it 'largely unimpressive' apart from efficiency and flags pricing above competitors, including WD's own faster SN850X. TechPowerUp's draft entry (which had rated it best-in-class) was dropped: the fetched page returned only its intro/specs section, so none of its quotes or measured values could be confirmed. Praised: Class-leading / chart-topping power efficiency; Strong performance for a DRAM-less HMB design, especially random reads; Affordable / competitively priced for its class; Five-year warranty. Flagged: Mediocre all-around performance; not the fastest overall; Sustained / post-cache writes drop to a stable ~500MBps to nearly 1GBps on native TLC; No 4TB option at launch; Priced above competitors, including WD's own faster SN850X. (From 2 tester reviews, 2 lab-tested.)
How much does the WD_Black SN7100 cost?
The WD_Black SN7100 has a US price of $84.99 (Tom's Hardware "WD Black SN7100 SSD Review" spec table lists the 1TB (part WDS100T4X0E) at $84.99 (review-time US price, Feb 2025); the review prose cites $54.99 / $84.98 / $139.99 for the 500GB / 1TB / 2TB SKUs "at the time of review." The Sandisk official product page shows no static USD price (price is JS-loaded), and Amazon's page geolocated to EUR, so USD price is taken verbatim from the dated review for the 1TB capacity.), as of 2026-07-11.
How does the WD_Black SN7100 compare on price?
At $85, the WD_Black SN7100 is the cheapest of the 9 internal ssds we track, where the median is $239.99.
When was the WD_Black SN7100 released?
The WD_Black SN7100 was released 2025.
What are the WD_Black SN7100's key specs?
WD_Black SN7100 (Western Digital): capacityOptionsTb 0.5, 1, 2, 4, formFactor M.2 2280, interface PCIe 4.0 x4 NVMe, seqReadMbps 7250, seqWriteMbps 6900. Full sourced spec sheet verified 2026-07-11.
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