WUS721208BLE604 – 12TB 7200 RPM SATA 6Gb/s 3.5-Inch Ultrastar DC HC320 Enterprise Hard Drive
The Western Digital Ultrastar DC HC320 (WUS721208BLE604) is a 12TB enterprise-class 3.5-inch hard drive positioned for data centers, storage arrays, and high-density enterprise applications. With a 7200 RPM spindle and SATA 6 Gb/s interface, it suits workloads that demand sustained throughput and durability beyond NAS- or surveillance-grade drives, such as enterprise servers and scale-out storage. Buyers should verify that their platform supports the drive’s Advanced Format sector modes (4Kn/512e) before deployment.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model | WUS721208BLE604 |
| Series | Ultrastar DC HC320 (Western Digital’s enterprise-capacity line) |
| Capacity | 12 TB |
| Interface | SATA 6 Gb/s (bandwidth shared with the interface, not sustained transfer rate) |
| Form Factor | 3.5-inch |
| Spindle Speed | 7200 RPM (rotational-class; positioning differs from SSD-based tiers) |
| Cache (Buffer) | 256 MB |
| MTBF | 2.5 million hours (reliability rating, not a warranty term) |
| Workload Rating | Up to 550 TB/year (guidance for annualized workload; exceeding it may affect service life) |
| Advanced Format (AF) | 4Kn / 512e (512e eases compatibility with legacy operating systems and applications) |
| Power Efficiency | Low active and idle power draw (relevant for dense-array power budgets) |
| Vibration Protection | Enhanced for multi-drive environments (RV compensation for rack and JBOD chassis) |
Good to know
- Compatibility: confirm SATA controller and backplane support for Advanced Format 4Kn/512e sectoring; 512e mode offers the broadest drop-in compatibility with existing enterprise OS and RAID stacks.
- Family positioning: the DC HC320 sits in WD’s Ultrastar enterprise-capacity family, above NAS-oriented IronWolf/Red and surveillance-oriented SkyHawk series, with a higher annual workload rating (550 TB/year) and multi-drive vibration tolerance.
- Buying tip: for multi-bay deployments, source drives from the same batch and model for consistent firmware and behavior, and confirm the 512e/4Kn configuration matches your RAID controller’s alignment requirements.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Western Digital Ultrastar DC HC320 (WUS721208BLE604) is a 12TB enterprise-class 3.5-inch hard drive positioned for data centers, storage arrays, and high-density enterprise applications. With a 7200 RPM spindle and SATA 6 Gb/s interface, it suits workloads that demand sustained throughput and durability beyond NAS- or surveillance-grade drives, such as enterprise servers and scale-out storage. Buyers should verify that their platform supports the drive’s Advanced Format sector modes (4Kn/512e) before deployment.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model | WUS721208BLE604 |
| Series | Ultrastar DC HC320 (Western Digital’s enterprise-capacity line) |
| Capacity | 12 TB |
| Interface | SATA 6 Gb/s (bandwidth shared with the interface, not sustained transfer rate) |
| Form Factor | 3.5-inch |
| Spindle Speed | 7200 RPM (rotational-class; positioning differs from SSD-based tiers) |
| Cache (Buffer) | 256 MB |
| MTBF | 2.5 million hours (reliability rating, not a warranty term) |
| Workload Rating | Up to 550 TB/year (guidance for annualized workload; exceeding it may affect service life) |
| Advanced Format (AF) | 4Kn / 512e (512e eases compatibility with legacy operating systems and applications) |
| Power Efficiency | Low active and idle power draw (relevant for dense-array power budgets) |
| Vibration Protection | Enhanced for multi-drive environments (RV compensation for rack and JBOD chassis) |
Good to know
- Compatibility: confirm SATA controller and backplane support for Advanced Format 4Kn/512e sectoring; 512e mode offers the broadest drop-in compatibility with existing enterprise OS and RAID stacks.
- Family positioning: the DC HC320 sits in WD’s Ultrastar enterprise-capacity family, above NAS-oriented IronWolf/Red and surveillance-oriented SkyHawk series, with a higher annual workload rating (550 TB/year) and multi-drive vibration tolerance.
- Buying tip: for multi-bay deployments, source drives from the same batch and model for consistent firmware and behavior, and confirm the 512e/4Kn configuration matches your RAID controller’s alignment requirements.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
