DELL EMC Ultrastar DC HC520 12TB SAS 12Gb/s 3.5" HDD 0F29535 - Used, Tested
Store Banner

DELL EMC ULTRASTAR DC HC520 12TB

P/N: 0F29535 | 12Gb/s SAS | HelioSeal® Technology

DELL EMC Ultrastar DC HC520 12TB Hard Drive

Picture is representative of the 3.5-inch enterprise helium hard drive.

ENTERPRISE STORAGE EXCELLENCE

  • CONDITION: **USED**. Professionally pulled from a decommissioned storage array. Wiped and tested with zero bad sectors. Passed all SMART diagnostics.
  • HELIOSEAL® TECHNOLOGY: Uses helium instead of air to reduce turbulence, enabling higher capacity, lower power consumption, and improved reliability.
  • ENTERPRISE GRADE: Rated for 24/7/365 heavy workloads in data centers, server environments, and high-performance NAS units.
  • CAPACITY: Massive **12TB** raw storage for massive datasets and backup archives.

Technical Specifications Summary

Model Number **HUH721212AL5204** (DC HC520)
Dell Part Number **0F29535**
Interface **SAS 12 Gb/s**
Form Factor 3.5-inch Internal LFF HDD
Spindle Speed **7200 RPM** Performance Class
Cache / Buffer 256 MB
Sector Size 512e (Advanced Format)

❗ SAS Interface Warning: This is a **SAS (Serial Attached SCSI)** hard drive. It requires a compatible SAS controller (HBA or RAID card) and **will NOT work** in standard consumer SATA ports on a desktop motherboard.

Warranty & Assurance

30-Day Functionality Guarantee

We guarantee the drive is healthy, passes self-tests, and is free of mechanical failure for **30 days** from delivery.

Secure & Insured Shipping

The HDD will be shipped in a dedicated anti-static hard drive box with custom foam inserts to prevent any shock damage during transit.

  • Quick handling (1 business day).
  • Tracking and insurance provided.