Designed with SMB customers in mind, the 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD from WD is well-suited for medium to large-scale NAS environments with up to sixteen 3.5" drive bays. Engineered to handle increased workloads, this 4TB drive operates using a SATA III 6 Gb/s interface, a 128MB cache, and a rotational speed of 7200 rpm, which all help to ensure uninterrupted data transfers with a sustained rate of up to 202 MB/s. This drive also features high levels of reliability, with 600,000 load/unload cycles, <10 in 1015 non-recoverable read errors per bits read, dual-plane balance control technology, and 1,000,000 hours MTBF for 8-16 bay NAS systems. Shock protection is provided by a multi-axis shock sensor and WD's NASware 3.0 helps increase system compatibility, allowing Red Pro drives to be more easily integrated with your existing network infrastructure.
Capacity 4 TB
Interface SATA III 6 Gb/s
Form Factor 3.5"
Advanced Format (AF) Yes
Native Command Queuing Yes
RoHS Compliant Yes
Data Transfer Rate Buffer to Host: 6 Gb/s
Host to / from Drive (sustained): 202 MB/s
Cache 128 MB
Rotational Speed 7200 rpm
Reliability / Data Integrity
Load/Unload Cycles 600,000
Non-Recoverable Read Errors Per Bits Read <10 in 1015
MTBF 1,000,000 hours (for 8-16 bay NAS)
12 VDC ±10% (Peak) 1.79 A
Average Power Requirements Read/Write: 9.1 W
Idle: 5.8 W
Standby/Sleep: 1.0 W
Dimensions 1.028 x 5.787 x 4.000" / 26.1 x 147.0 x 101.6 mm
Weight 1.58 lb / 0.72 kg
Package Weight 1.9 lb
Box Dimensions (LxWxH) 9.3 x 7.3 x 4.2"
* Specifications are subject to change without notice.
* Specifications may vary.
* The product picture(s) is only for your reference, it may differ from the actual product.