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Tuesday, April 23, 2013
WD Shipping First 5 mm 2.5-Inch Hard Drive And SSHD

Western Digital is shipping ultra-slim 2.5-inch, 5 mm hard drives and solid state hybrid drives (SSHD), both designed for integration into ultra-portable devices.

With 500 GB of storage capacity, the new WD Blue hard disk drive has a 5 mm height with a compact connector, offering system designers a greater degree of chassis design freedom. This ultra-slim form factor reduces weight by up to 36 percent compared with a standard 9.5 mm drive.

WD's acoustics use technologies that reduce noise when the drive is active or idle. The WD Blue 5 mm drives deliver operation and non-operation shock specifications with 400 G and 1000G, respectively.

WD Blue 5 mm hard drives also feature the first application of a new small form factor SFF-8784 edge connector. This new connector receives power from and interfaces with the host I/O bus via the SATA interface connector SFF-8784, the type of connector used in internal storage devices for smartphones and tablets.

Furthermore, the drive's motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking during read and write operations.

Enterprise dual stage actuators provide two actuators that improve positional accuracy over the data track(s). The primary actuator provides coarse displacement using conventional electromagnetic actuator principles. The secondary actuator uses piezoelectric motion to fine tune the head positioning to a higher degree of accuracy.

WD is shipping the new WD Blue HDD (model: WD5000MPCK) to select industrial distributors and its OEM customers. The drive has a Manufacturer's Suggested Retail Price (MSRP) of $89.00 USD. WD Blue 2.5-inch 5 mm hard drives are covered by a two-year limited warranty.

In addition to the WD Blue HDD, WD also announced the availability of the 500GB Black SSHD, that shares the same physical design as the HDD but also packs 24GB of NAND flash memory - Seagate's 7mm SHDD offering packs only 8GB of flash. The drive also supports the new SFF-8784 edge card connector.

The WD Black SSHD versions are currently shipping to OEM's and integrators with both WD proprietary hybrid technology and industry standard SATA I/O technology.

Product Specifications
Interface SATA 6 Gb/s
Performance Specifications
Rotational Speed 5,400 RPM (nominal)
Buffer Size 16 MB
Average Latency 5.50 ms (nominal)
Transfer Rates
Buffer To Host (Serial ATA) 6 Gb/s (Max)
Physical Specifications
Formatted Capacity 500,107 MB
Capacity 500 GB
User Sectors Per Drive 976,773,168
Physical Dimensions
Height 5.0 mm
Depth 100.3 mm
Width 69.85 mm
Weight 74 g
Environmental Specifications
Operating Shock (Read) 400G, 2ms
Non-operating Shock 1000G, 2 ms
Idle Mode 15 dBA (average)
Seek Mode 0 17 dBA (average)
Temperature (English)
Operating 32° F to 140° F
Non-operating -40° F to 149° F
Temperature (Metric)
Operating -0° C to 60° C
Non-operating -40° C to 65° C
Electrical Specifications
Read/Write 1.5 Watts
Idle 0.55 Watts
Standby 0.15 Watts
Sleep 0.15 Watts

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