WD Black SN770 2TB NVMe Gen4

WD Black SN770 2TB NVMe Gen4 SSD - India Buyer's Guide

The WD Black SN770 2TB is one of the better value Gen4 SSDs you can buy in India right now. At this capacity, the DRAMless design becomes far less of a concern - the SLC cache on the 2TB model is large enough that most real-world workloads never exhaust it. That changes the calculus significantly compared to the 500GB version of the same drive.

A quick note on slugs: this page lives at /parts/storage/sn770-2tb - without the "wd-" prefix that the 500GB and other WD articles use. That is a site indexing quirk, not a different product.

What the WD SN770 2TB Gets Right

The SN770 uses WD's in-house NVMe controller paired with TLC NAND - triple-level cell, one tier above QLC. TLC gives better sustained write endurance and more predictable performance under load. The DRAMless design means the drive uses the host CPU's RAM as a cache buffer (HMB - Host Memory Buffer), which works adequately for most PC workloads.

Rated specs: up to 5,150 MB/s sequential read and 4,850 MB/s sequential write. These are realistic numbers for the 2TB variant, not inflated burst figures that only apply at smaller capacities.

For gaming, the SN770 2TB is an excellent fit. Modern games regularly exceed 50–100GB per title, and the 2TB capacity means you can maintain a full library without shuffling installs constantly.

Sequential Speed Comparison

India Pricing (May 2025)

The WD Black SN770 2TB is priced at ₹9,000–₹13,000 depending on retailer and stock:

• MDComputers - competitive pricing, often close to the lower end
• PrimeABGB - reliable stock levels, worth checking
• Vedant Computers - standard pricing
• Amazon India / Flipkart - watch for sale events; prices can dip significantly

India distribution runs through Acro Engineering, WD's official distributor. Warranty claims are handled domestically through authorized service centers.

SN770 2TB vs SN850X 2TB vs Kingston NV3 2TB

WD SN850X 2TB (₹13,000–₹18,000): About ₹3,000–₹5,000 more expensive, significantly faster with DRAM cache at 7,300 MB/s. Worth the premium if you do content creation or workloads that push sustained sequential transfers. For pure gaming, the SN770 2TB is fast enough.

Kingston NV3 2TB (₹6,500–₹8,500): Cheaper, but uses QLC NAND. For a large game library with frequent installs and deletes, the SN770's TLC NAND is more appropriate. The NV3's lower endurance (rated TBW) matters more at 2TB capacity.

India Power Cut Resilience

DRAMless drives like the SN770 have one practical advantage in India's power situation: no DRAM cache means no cache contents to lose on sudden power loss. The trade-off - DRAM-assisted drives handle sudden cuts better in general because they can flush pending writes more efficiently. Either way, use a UPS if your data is critical.

Should You Buy the WD SN770 2TB?

Yes, this is a strong all-around pick at 2TB. TLC NAND, Gen4 speeds, 5-year warranty, and good availability in India through established distribution channels. The main competition is the SN850X 2TB at a higher price, and the Kingston NV3 2TB at a lower price. The SN770 2TB sits comfortably in the middle and competes well.

Price per GB works out to roughly ₹4.5–₹6.5/GB - better value than the 500GB or 1TB variants of most drives.