400-AUQX: Dell 8TB 7.2K RPM SAS 12Gb/s 512e 3.5in Hot-Plug Hard Drive
Also listed as: 01D78R, 1D78R, ST8000NM0075, HUS728T8TAL5204 · made by Seagate
The Dell 400-AUQX is a Dell 8TB 7.2K RPM SAS 12Gb/s 512e 3.5in Hot-Plug Hard Drive delivering 8000GB of rotational storage at 7200 rpm over SAS 12Gb/s in a LFF 3.5in carrier. Manufactured by Seagate, the 400-AUQX provides dependable bulk storage for Dell R730XD, R740XD, R750, MD1200 enterprise servers.
Specifications
| Part number | 400-AUQX |
|---|---|
| Brand | Dell |
| Made by | Seagate |
| Type | Hard drives |
| Other numbers | 01D78R, 1D78R, ST8000NM0075, HUS728T8TAL5204 |
| Status | current |
| Capacity (GB) | 8,000 |
| Interface | SAS 12Gb/s |
| Form factor | LFF 3.5in |
| Speed | 7200 rpm |
| Endurance | 550 TB/year workload rating |
About the 400-AUQX
The Dell 400-AUQX is a Dell 8TB 7.2K RPM SAS 12Gb/s 512e 3.5in Hot-Plug Hard Drive offering 8000GB of rotational enterprise storage operating at 7200 rpm over SAS 12Gb/s in a LFF 3.5in format. Built with multi-platter mechanical assemblies from Seagate, the 400-AUQX provides dependable sequential throughput and 24/7 duty-cycle durability. In Dell's storage portfolio, 400-AUQX delivers economical storage capacity for secondary storage tiers, backup targets, and media streaming pools.
Compatibility
The 400-AUQX installs directly into 3.5-inch large form factor hot-plug bays across Dell enterprise systems including R730XD, R740XD, R750, MD1200. The 400-AUQX mounts inside a X7K8W (14G–16G) drive tray and connects to onboard SATA ports or PERC controllers supporting SAS 12Gb/s. Part 400-AUQX 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-AUQX units feature a Dell enterprise drive label displaying DP/N 01D78R, 8000GB capacity, 7200 rpm rotational speed, and Seagate model markings ST8000NM0075. In iDRAC under Physical Disks, the 400-AUQX registers with certified Dell firmware, active SMART diagnostics, and spindle temperature monitoring. The X7K8W (14G–16G) carrier for 400-AUQX includes status and activity indicator light pipes.
Buying used
When evaluating a pre-owned 400-AUQX, 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-AUQX to verify smooth bearing rotation without head-parking noise. Ensure the correct X7K8W (14G–16G) caddy is supplied with the 400-AUQX.
Fits these models
- Dell PowerEdge R730xd
- Dell PowerEdge R740xd
- Dell PowerEdge R750
- Dell PowerVault MD1200
- Dell PowerVault MD1400
- Dell PowerVault ME4012
Equivalent part numbers
- Seagate ST8000NM0075 Seagate Enterprise Capacity 8TB SAS HDD OEM base
FAQ
Does this 8TB drive work in Dell 13G servers like the R730xd?
Yes, 8TB SAS drives are fully supported on Dell PowerEdge 13G systems with PERC H730 or H730P RAID controllers.
What is the typical MTBF for this drive?
It features an enterprise-class mean time between failures (MTBF) rating of 2.0 million hours.
Buying or selling 400-AUQX?
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 8TB 7.2K RPM SAS 3.5-inch Enterprise Hard Drive Specifications, checked 2026-10-27