Compare Sabrent Rocket 5 2TB and WD_BLACK SN7100 2TB: prices, speeds, $/TB. Which to buy in July 2026? Full spec breakdown.
Sabrent Rocket 5 2TB vs WD_BLACK SN7100 2TB pits two different generations against each other at 2 TB. The question isn't which is faster on paper — that's settled — it's whether the bandwidth gap shows up in your specific workload.
Hardware-wise, the Sabrent Rocket 5 2TB runs on an original Phison E26 chip that defined the Gen 5 reference design. The WD_BLACK SN7100 2TB pairs an A101 controller that replaced the older WD designs in the SN7100 generation.
There's a modest pricing advantage for the WD_BLACK SN7100 2TB: $145.00/TB compared with $175.00/TB. For typical gaming and productivity, this becomes the deciding factor when specs are close.
In the read department, the Sabrent Rocket 5 2TB leads by roughly 6 GB/s. The difference is more academic than practical for typical use, but it does matter for video editors moving multi-GB project files.
Write performance separates them too. The Sabrent Rocket 5 2TB sustains 11,600 MB/s writes versus 6,900 MB/s for the WD_BLACK SN7100 2TB — a real advantage for video editors and anyone doing heavy file operations.
The Sabrent Rocket 5 2TB carries a dedicated DRAM chip for FTL (Flash Translation Layer) mapping; the WD_BLACK SN7100 2TB relies on HMB (Host Memory Buffer), borrowing 64 MB from system RAM. The practical gap shows up only under sustained random write loads.
For PS5 expansion, both are PCIe Gen 4 M.2 2280 drives that meet Sony's minimum spec (7,250 MB/s read). The console can't take advantage of speeds beyond that, so save money by choosing the WD_BLACK SN7100 2TB. The leap from Gen 4 to Gen 5 doubles peak throughput on paper but produces single-digit-percent improvements in game load times, OS boot, and most productivity benchmarks. The WD_BLACK SN7100 2TB is the better default unless you have a specific workload that needs the extra lanes. For content creators routinely rendering 4K or 8K video, the Sabrent Rocket 5 2TB's 11,600 MB/s sustained write is the deciding factor — multi-GB project files land noticeably faster than on the alternative. Note for handheld gamers: M.2 2280 is the desktop/laptop standard. Steam Deck and the ROG Ally line need 2230 drives — neither Sabrent Rocket 5 2TB nor WD_BLACK SN7100 2TB fits without modification.
Market context: the Sabrent Rocket 5 2TB ranks #3 of 11 Gen 5 2 TB drives we track by $/TB, while the WD_BLACK SN7100 2TB ranks #3 of 11 Gen 4 2 TB drives. That puts at least one of them near the top of the value table — a reasonable head-to-head to be choosing from.
As of July 27, 2026, these tracked drives undercut both the Sabrent Rocket 5 2TB and WD_BLACK SN7100 2TB on $/TB:
Pick the Sabrent Rocket 5 2TB if you value meaningfully faster reads (14,000 MB/s), higher sustained writes (11,600 MB/s), and a dedicated DRAM cache chip. Sabrent's Rocket line carries a community reputation for transparent firmware support — manual update tools available directly from the manufacturer.
Pick the WD_BLACK SN7100 2TB if you value the lower retail price ($290 vs $350), and better $/TB economics ($145.00/TB).