Western Digital Ultrastar DC HC310 4TB 7200rpm 256MB Cache 3.5 Inch SATA3 NAS Hard Drive

As the industry evolves to develop purpose-built solutions for growing data storage requirements, IT managers continue to rely on lower capacity drives that are economical to acquire, yet deliver quick and reliable data access for traditional data center applications. Ultrastar
DC HC310 is a low-capacity HDD that helps address economic and access requirements of many traditional IT workloads. Low capacity drives also help address architecture limitations. Part of the mid-capacity DC HC300 series, the Ultrastar DC HC310 is designed for traditional storage and server applications as well as distributed and scalable computing, including block and file storage architectures, providing fast 7,200 RPM performance and lower acquisition cost to help ease budget constraints.

• 4TB capacity in a standard 3.5-inch form factor
• Excellent random and sequential performance
• Compatibility with legacy systems
• 12% faster than prior generation

Configuration:
• Interface: SATA 6Gb/s
• Capacity: 4TB
• Sector size (bytes): 512 native (512e)
• Max. areal density (Gbits/sq. in): 782

Performance:
• Data buffer: 256 MB
• Rotational speed: 7200 RPM
• Latency average (ms): 4.16
• Interface transfer rate (MB/s, max): 600
• Sustained transfer rate: Up to 243 MiB/sec, typ., Up to 255 MB/sec, typ.
• Seek time: (read/write, ms, typical): 8.0 / 8.6

Reliability:
• Error rate (non-recoverable, bits read): 1 in 10^15
• Load/Unload cycles (40°C): 600,000
• MTBF (M hours): 2.0
• Annualised Failure Rate (AFR): 0.44%
• Availability (hrs/day x days/wk): 24x7

Acoustics:
• Idle/Operating (Bels, typical): 2.5 / 3.6

Power:
• Requirement +5V, +12V
• Operating (W, typical) 7.0
• Idle (W) 5.9

Environmental (operating):
• Ambient temperature: 5° to 60°C
• Shock (half-sine wave, G, read operation): 70 (2 ms)
• Vibration (G RMS, 10 to 300 Hz): 0.67 (XYZ)

Environmental (non-operating):
• Ambient temperature: -40° to 70°C
• Shock (half-sine wave, G): 300 (2ms)
• Random Vibration (G RMS, 10 to 300 Hz): 1.04 (XYZ)

Physical size:
• z-height: 26.1 mm
• Dimensions (WxD): 101.6 (+/-0.25) x 147 (max) mm
• Weight (approx.): 715 g