The WD Ultrastar 7K4000 4TB SATA NAS is a 4TB SATA-6G HDD in new condition. It is in stock at $184.99 - $46.25/TB.
| Drive | Interface | Cond | $/TB | Price | |
|---|---|---|---|---|---|
| HP 695842-001 4TB SAS 6G | SAS-6G | New | $15.00 | $59.99 | Buy |
| Dell 012GYY 4TB SAS 6G Renewed | SAS-6G | Refurb | $21.25 | $85.00 | Buy |
| Dell DRMYH Compellent 4TB NL SAS Renewed | SAS-6G | Refurb | $22.50 | $89.98 | Buy |
| HGST HUS726040ALS210 4TB SAS 12G | SAS-12G | Refurb | $26.93 | $107.70 | Buy |
All 4TB drives we track, ranked by cost per terabyte.
Part of the WD line we track.
The WD Ultrastar 7K4000 4TB SATA NAS is a 4TB SATA-6G enterprise drive at $46.25/TB - CMR recording makes it safe for all RAID levels and NAS deployments. New unit with full manufacturer warranty.
Against every other drive we have an in-stock price for today, this one is cheaper per tb than 26% of them (64 of 246). The cheapest we can currently buy is $14.99/TB; the middle of the market is $36.97/TB.
These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.
Resolved against manufacturer compatibility lists we read and dated, capped at 4. Vendor-listed means the manufacturer names this exact part number; fit-verified is our own check of form factor, interface and recording technology against a published requirement. Neither is a guess, and a drive the registry cannot resolve shows nothing here rather than a maybe. How compatibility actually works
Yes. The Ultrastar 7K4000 4TB SATA NAS uses CMR recording which is fully compatible with all RAID levels.
Warranty varies by seller. Check the Amazon listing for current warranty terms.
Compatible with any server, NAS or workstation with a SATA port. Works in Synology, QNAP, TrueNAS, UnRAID and all major NAS platforms.