Western Digital RE 250GB Serial ATA II 7200RPM 16MB 20pk bulk WD2500YD-20PK Leaflet

High Capacity
24 x 7 Reliability
1 Million Hours MTBF

3.5-inch/1-inch

 160 to 320 GB

WD1600SB
WD2500SB
WD3200SB

Note: Not all products

may be available in all

regions of the world.

WD RE 7200 RPM hard drives are engineered to thrive in a high duty cycle RAID system while still 
offering traditional low cost-per-capacity desktop value. Designed and manufactured to server-class 
standards, WD RE drives provide RAID-specific, time-limited error recovery (TLER) to significantly 
reduce drive fallout caused by extended drive error-recovery processes and are tested to 1 million hours 
MTBF. These SATA drives include an 8 or 16 MB cache for faster time to data and fluid dynamic bearings 
(FDB) to reduce heat, vibration, and noise.

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Superior reliability — backed by a 5-year warranty and tested to 1 million hours MTBF at 80% duty 
cycle, these enterprise drives are designed and manufactured to provide server-class reliability.

„

Fast — with up to 3.0 Gb/s data transfer rate, and up to 16 MB cache, these drives deliver optimum 
performance in nearline server environments.

„

Low power — Active Power Save

™

 delivers best-in-class seek mode power consumption through 

advanced WD firmware that conserves power in active seek modes without degrading performance.

„

RAID-specific, time-limited error recovery (TLER) — a feature pioneered by WD that significantly 
reduces drive fallout caused by extended drive error-recovery processes common to desktop drives.

„

5-year warranty 

„

Native command queuing (NCQ)* — server feature for increased performance in random I/O 
transaction environments. NCQ aggregates many small random data transfers and allows the disk to 
reorder the commands in a sequential order for faster access (available with most models).

„

™

 — connector technology that accepts power from either industry-standard or new SATA 

power supplies.

„

™

 — provides a 500% stronger cable-to-drive connection than first-generation 

SATA hard drives and cables. Also ensures backward compatibility with legacy SATA cables and 
backplanes. 

Note: SecureConnect supports only legacy power and does not allow connection to a SATA power 
supply.

„

Hot plug support — allows swapping of hard drives without having to power down the system or 
reboot; promotes system design flexibility, data availability, and serviceability.

„

Backplane compatibility — uses the SATA industry standard connector which includes alignment ears 
and 3-stage electrical mating sequence designed specifically for backplanes and hot pluggability.

„

SATA latching connector — provides a secure connection between the hard drive and the cable 
connector via a locking latch mechanism.

Servers, network attached storage, scientific computing, life sciences, video surveillance, enterprise 
backup, software build systems, document and image management, audio/video media applications, 
other demanding write-intensive applications.

7200 RPM

SATA or EIDE

WD1600YS
WD2500YS
WD3200YS