400-BCQY: Dell 20TB 7.2K RPM SATA 6Gb/s 512e 3.5in Hot-Plug Hard Drive
Also listed as: 02N95F, 2N95F, ST20000NM007D, WUH722020ALE6L4 · made by Seagate
The Dell 400-BCQY is a Dell 20TB 7.2K RPM SATA 6Gb/s 512e 3.5in Hot-Plug Hard Drive delivering 20000GB of rotational storage at 7200 rpm over SATA 6Gb/s in a LFF 3.5in carrier. Manufactured by Seagate, the 400-BCQY provides dependable bulk storage for Dell R740XD, R740XD2, R750, R760 enterprise servers.
Specifications
| Part number | 400-BCQY |
|---|---|
| Brand | Dell |
| Made by | Seagate |
| Type | Hard drives |
| Other numbers | 02N95F, 2N95F, ST20000NM007D, WUH722020ALE6L4 |
| Status | current |
| Capacity (GB) | 20,000 |
| Interface | SATA 6Gb/s |
| Form factor | LFF 3.5in |
| Speed | 7200 rpm |
| Endurance | 550 TB/year workload rating |
About the 400-BCQY
The Dell 400-BCQY is a Dell 20TB 7.2K RPM SATA 6Gb/s 512e 3.5in Hot-Plug Hard Drive offering 20000GB of rotational enterprise storage operating at 7200 rpm over SATA 6Gb/s in a LFF 3.5in format. Built with multi-platter mechanical assemblies from Seagate, the 400-BCQY provides dependable sequential throughput and 24/7 duty-cycle durability. In Dell's storage portfolio, 400-BCQY delivers economical storage capacity for secondary storage tiers, backup targets, and media streaming pools.
Compatibility
The 400-BCQY installs directly into 3.5-inch large form factor hot-plug bays across Dell enterprise systems including R740XD, R740XD2, R750, R760. The 400-BCQY mounts inside a X7K8W (14G–16G) drive tray and connects to onboard SATA ports or PERC controllers supporting SATA 6Gb/s. Part 400-BCQY is formatted for 3.5-inch large form factor slots and is not compatible with 2.5-inch SFF chassis drive bays.
How to identify a genuine unit
Genuine 400-BCQY units feature a Dell enterprise drive label displaying DP/N 02N95F, 20000GB capacity, 7200 rpm rotational speed, and Seagate model markings ST20000NM007D. In iDRAC under Physical Disks, the 400-BCQY registers with certified Dell firmware, active SMART diagnostics, and spindle temperature monitoring. The X7K8W (14G–16G) carrier for 400-BCQY includes status and activity indicator light pipes.
Buying used
When evaluating a pre-owned 400-BCQY, check SMART logs via OpenManage or smartctl to verify zero reallocated sectors (attribute 0x05) and zero pending defects (attribute 0xC5). Check power-on hours and execute an extended drive self-test on the 400-BCQY to verify smooth bearing rotation without head-parking noise. Ensure the correct X7K8W (14G–16G) caddy is supplied with the 400-BCQY.
Fits these models
- Dell PowerEdge R740xd
- Dell PowerEdge R740xd2
- Dell PowerEdge R750
- Dell PowerEdge R760
- Dell PowerEdge R760xd2
- Dell PowerVault ME5084
Equivalent part numbers
- Seagate
ST20000NM007D Seagate Exos X20 20TB 7200 RPM SATA 6Gb/s 512e/4Kn 3.5-Inch Enterprise Hard Drive Seagate Exos X20 SATA 20TB Enterprise HDD OEM base
FAQ
Why is helium used in 20TB enterprise hard drives?
Helium reduces internal aerodynamic drag, allowing up to 10 magnetic platters to spin with lower friction, reduced motor power, and lower temperatures.
Can this drive be used in high-drive-count Dell PowerVault ME5084 arrays?
Yes, Dell officially qualifies 20TB drives for the 84-drive high-density PowerVault ME5084 enclosure.
Buying or selling 400-BCQY?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell 20TB 7.2K RPM SATA 3.5-inch Enterprise Hard Drive Specifications, checked 2026-10-27