The WD Black SN7100, one of WD's latest and fastest PCIe 4.0 M.2 NVMe SSDs, is now available at a discount. Just in time for Labor Day, the 4TB model is on sale for only $209.99 with free shipping from Amazon. While the SN7100 series launched in November 2024, the larger 4TB capacity arrived in March 2025, and this deal marks its all-time lowest price. It's a perfect, seamless storage upgrade for your PlayStation 5 or a high-performance boot drive for your gaming PC.
WD Black SN7100 PS5-Compatible SSD for $209.99
PS5 Compatible
WD Black SN7100 2TB PCIe Gen4 M.2 SSD
List Price $269.99 | Save 22% | Now $209.99 at Amazon
The WD Black SN7100 is a faster, next-generation successor to the SN770, featuring WD's latest Polaris 3 controller and 218-layer TLC 3D NAND flash. It delivers impressive sequential read/write speeds up to 7,000MB/s and 6,900MB/s, along with random performance of 900K IOPS read and 1,300K IOPS write. With a high endurance rating of 2,400TBW—significantly more than many competing SSDs—gamers are unlikely to reach this limit before upgrading. The drive is also energy-efficient, consuming less power and generating less heat than most 4TB SSDs. Its single-sided design offers a slimmer profile, ensuring broad compatibility with mini PCs and ultra-thin laptops.
Compared to the more expensive SN8100—currently over twice the price—the main difference is that the SN7100 is a DRAM-less SSD. Instead of onboard DRAM, it leverages Host Memory Buffer (HMB) technology, utilizing a small portion of system RAM. In real-world gaming scenarios, whether installed in a PS5 or a gaming PC, users won't notice a performance drop, and the cost savings are passed directly to the consumer.
The WD Black SN7100 is an outstanding choice for expanding your PS5 storage. It meets all of Sony's guidelines, including the M.2 2280 form factor, a minimum speed of 5,500MB/s, and a PCIe Gen4x4 interface. While it doesn't include a pre-installed heatsink, affordable aftermarket options are available for around $7 and are simple to install. The SSD is backed by a five-year warranty.
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