WD_BLACK SN8100 4TB Gen5 SSD Sits at $699.99 on Amazon as NAND Shortage Bites
WD’s flagship consumer SSD, the WD_BLACK SN8100, is currently listed at $699.99 for its 4TB model on Amazon, a price that reflects just how much the ongoing NAND flash shortage has reshaped the high-end storage market. The PCIe Gen 5 drive, built around Silicon Motion’s SM2508 controller and Kioxia’s 218-layer BiCS8 TLC NAND, promises sequential read speeds up to 14,900MB/s and writes up to 14,000MB/s, according to WD’s own product listing.
4TB SN8100 Pricing Jumps Well Above Its Original Launch Cost
The WD_Black SN8100 4TB NVMe PCIe Gen 5.0 SSD was originally listed around $469, making it a strong contender in the high-end Gen5 segment, and at that price the combination of 4TB capacity and top-tier performance was easy to recommend, according to a review published by ThePCEnthusiast. Since then, pricing on the 4TB model has ranged roughly $699 to $1,000 depending on the retailer, with Amazon’s first-party listings often sitting closer to $699 while third-party sellers ask $849 or more.
Independent price-tracking data from Pangoly backs up that volatility: the 4TB SN8100 has swung from a low of $350 last September to a peak of $1,899.99 in April this year, with an average sitting around $804. At $699.99, the current Amazon price sits below that historical average but is still roughly 49% above its original street price.
14,900MB/s Reads Put the SN8100 Ahead of Rival Gen 5 Drives
On paper, the SN8100 remains one of the fastest consumer drives on the market. With the help of Sandisk’s nCache 4.0 feature, the WD_BLACK SN8100 SSD reaches sequential read speeds up to 14,900MB/s, sequential write speeds up to 14,000MB/s, and over 2,300,000 IOPS of random performance on its 2TB and 4TB models, according to the official WD_BLACK data sheet.
Independent lab testing from StorageReview places the drive at the top of its Gen 5 comparison charts. The SN8100 posted the fastest overall PCMark 10 results at 10,005.2MB/s read and 10,581MB/s write, edging out rivals like the Crucial T705, Samsung 9100 Pro and Crucial P510 in real-world application traces. ThePCEnthusiast’s own hands-on testing similarly found the drive’s advertised numbers pairing Silicon Motion’s SM2508 controller with Kioxia’s 218-layer BiCS8 TLC NAND to offer advertised sequential speeds up to 14,900MB/s read and 14,000MB/s write, surpassing even Phison-based Gen5 SSDs like the Crucial T705 and Samsung’s latest 9100 Pro.
WD also touts the drive’s efficiency alongside its raw throughput. The SN8100 is over 100% more power efficient across its 1TB to 4TB models than WD’s PCIe Gen 4 drive, at an average operating power of 7.5W or under, per the manufacturer’s data sheet, while the flagship model carries up to 4,800 TBW endurance on its 8TB variant, built on the latest TLC 3D CBA NAND technology.
NAND Flash Shortage Is Squeezing the Whole SSD Market
The SN8100’s elevated pricing isn’t happening in isolation. Analyst firm TrendForce has tracked a severe supply crunch throughout 2026 as manufacturers redirect NAND and DRAM production toward AI data centre components. Tom’s Hardware reports that conventional DRAM contract prices are projected to rise 13% to 18% quarter-over-quarter in Q3 2026, with NAND flash contract prices increasing 10% to 15%, a slowdown from the sharper spikes seen earlier in the year but still a substantial climb.
ThePCEnthusiast points to the same dynamic behind the SN8100’s price swings, noting that the main driver is the ongoing NAND and memory supply situation, which has pushed prices up across the SSD market, particularly for higher-capacity models, with the 4TB SN8100 carrying a notable premium. Shoppers hunting for a Gen 5 upgrade this year are largely at the mercy of that broader semiconductor squeeze rather than any single retailer’s pricing decision.
Who the SN8100 4TB Still Makes Sense For
Even at $699.99, the SN8100 4TB targets a specific buyer: gamers and creators with a genuinely Gen 5-capable motherboard who need both raw bandwidth and generous capacity. The drive sits at the top end of today’s consumer storage market, combining extreme speed with a large amount of fast storage that appeals to users with large game libraries, high-resolution video projects, or other demanding workloads, according to ThePCEnthusiast’s assessment.
For everyday tasks like booting Windows or launching apps, the jump from a good Gen 4 drive is far less noticeable, since most routine workloads don’t come close to saturating Gen 4 bandwidth. The gains show up in large sequential transfers — shifting big game installs, exporting video projects or loading AI datasets — where the SN8100’s headline speeds are actually put to use.
Australian and New Zealand PC builders eyeing a Gen 5 upgrade should expect similar upward pressure locally, given the same global NAND allocation issues affecting US pricing; regional retailers sourcing from the same constrained supply chains are unlikely to be insulated from the trend. Buyers weighing the SN8100 against rivals such as the Samsung 9100 Pro or Crucial T705 will want to watch listed capacities carefully, since WD’s data sheet notes some of its highest IOPS and endurance figures are reserved for the 2TB-4TB tier rather than smaller drives.
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