WD RED PLUS 4TB NAS DESKTOP 3.5 INCH INTERNAL HARD DRIVE, SATA III W/256MB CACHE

WD RED Plus: The NAS Drive For Your Network Attached Drive Array
Tackle Intensity with WD Red Plus

Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers, WD Red Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files.

Available in capacities ranging from 1-14TB with support for up to 8 bays
Supports up to 180 TB/yr workload rate
NASware firmware for compatibility
Vibration & Shock protection
Small or medium business NAS systems in a 24x7 environment

Specifications:

Make and Model Western Digital Red Plus NAS HDD, 4TB
Part Number WD40EFPX

Capacity 4TB
Buffer Size 256MB cache
Interface CMR, SATA III, 6Gb/s
Form Factor 3.5"
Rotational Speed 5,400 RPM class

Interface Speed 6 Gb/s


Interface Transfer Rate 180 MB/s

Load Cycles 600,000
Non-recoverable Errors Per Bits Read <10 in 1014

MTBF 1,000,000 hours
Workload Rate 180 TB/year

Temperature Operating: 0° ~ 65° C
Non-operating: -40° ~ 70° C
Shock Operating: 70Gs (2ms, read/write)
Non-operating: 250G (2ms)
Acoustics Idle: 23dBA
Operating: 27dBA

Power Operating: 4.7W
Idle: 3.1W
Standby / Sleep: 0.3W

Dimensions (WxHxL) 101.6 x 26.1 x 147 mm (4" x 1.03" x 5.79")
Weight 1.26 lb. (0.57kg)