WD Black SN8100 4TB

WD's Flagship Scales Up

We already cover the WD Black SN8100 2TB on this site, and it's earned its reputation as one of the fastest consumer NVMe drives available in India. The 4TB variant is the same drive at double the capacity, same Phison E26 controller, same 3D TLC NAND with onboard DRAM, same rated 14,900 MB/s sequential read speed. What changes is the price, and at 4TB, this drive lands at ₹108,992 through Computech Store, making it the priciest internal SSD covered on this site.

That number needs context. It's roughly ₹20,000 more than the Samsung 9100 Pro 4TB, for essentially the same speed tier. If you're choosing purely on price-to-performance at 4TB, the 9100 Pro currently wins that comparison. WD's case for the SN8100 rests on brand preference, WD's 5-year warranty through Acro Engineering's network, and marginal differences in sustained write performance under specific heavy workloads that most buyers will never stress hard enough to notice.

Real-World Use Case

Like the Samsung 9100 Pro 4TB, this drive is not a gaming purchase. No game in 2026 shows a measurable difference between Gen4 and Gen5 load times, and even fewer show any difference between 2TB and 4TB Gen5 drives specifically. The SN8100 4TB earns its price in workloads that stress both capacity and throughput simultaneously, 4K/8K video production pipelines, large-scale software builds, dataset-heavy machine learning work done locally, or professional workstations where downtime waiting on storage genuinely costs money.

If your PC use case is gaming plus general productivity, even a demanding one, you will not extract value from this drive proportional to its price. A 2TB Gen5 drive, or even a good 2TB Gen4 drive, will serve you just as well for a fraction of the cost.

Cooling: Non-Negotiable at This Tier

At this capacity and controller class, thermal throttling under sustained load is a real risk without proper cooling, and Indian ambient heat makes it worse. WD sells a heatsink-equipped variant, get it, or verify your motherboard's M.2 heatsink makes solid contact before committing to a bare drive. A ₹1,08,992 drive throttling because of a ₹0 cooling oversight is not a mistake you want to make.

WD's India warranty runs 5 years through Acro Engineering. Buy from Computech Store directly or another authorized retailer, at this price point, verify GST invoicing and avoid marketplace sellers without a clear WD India authorization trail. There's also an 8TB SN8100 listed by Computech Store for buyers who need even more headroom, though I don't have a confirmed India price on that capacity yet.

Who Should Buy / Who Should Skip

Buy it if: you're a professional whose daily work involves large file throughput at scale, video production, large codebases, dataset work, and you specifically prefer WD's platform or warranty terms over Samsung's.

Skip it if: you're building for gaming or general use, in which case this is significant overspend for zero perceptible benefit. The Samsung 9100 Pro 4TB is the better value pick at this exact capacity tier, and a 2TB drive from either brand is the smarter choice for most builds.