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Western Digital WD2500BJKT SATA Hard Drive

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Western Digital WD2500BJKT Scorpio Black 250GB 7.2K SFF 2.5 inch SATA Laptop Hard Drive – Refurbished OEM

Desktop-class performance for notebook computersĀ – With 7200 RPM spin speed,16 MB cache, and capacities up to 750 GB, these drives enable you to have the best of both worlds: the capacity and performance of a desktop PC with the convenience and portability of a notebook.

Reliable and ruggedĀ – WD’s ShockGuardā„¢ technology protects the drive mechanics and platter surfaces from shocks during shipping and handling and in daily operation. WDā€™s SecurePark parks the recording heads off the disk surface during spin up, spin down, and when the drive is off. This ensures the recording head never touches the disk surface, resulting in improved long-term reliability due to less head wear and improved non-operational shock tolerance.

Low power consumptionĀ – With technologies like IntelliSeekā„¢, which calculates optimum seek speeds to lower power consumption and SecureParkā„¢, which reduces power by parking the heads during low power idle mode, this drive delivers 5400 RPM-equivalent power consumption in a 7200 RPM drive.

QuietĀ – In a notebook drive, silence is golden. WDā€™s exclusive WhisperDriveā„¢ combines state-ofthe- art seeking algorithms to yield one of the quietest 2.5-inch hard drives on the market.

Dell Part Number:Ā K645G 0K645G

SKU: WD2500BJKT Category: Tags: ,
Weight 0.106 kg
Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Average Latency 4.2 ms (nominal)
Seek Times
Read Seek Time 12.0 ms
Track-To-Track Seek Time 2.0 ms (average)
Transfer Rates
Buffer To Host (Serial ATA) 3.0 Gb/s (Max)
Transfer Rate (Buffer To Disk) 600 Mbits/s (Max)

Physical Specifications
Formatted Capacity 250,059MB
Capacity 250 GB
Interface SATA 3.0 Gb/s

Physical Dimensions
English
Height 0.374 Inches Ā±0.008 inch
Length 3.94 Inches Ā±0.010 inch
Width 2.75 Ā±0.010 inch
Weight 0.23 Pounds
Metric
Height 9.5 mm Ā±0.20 mm
Length 100.2 Ā±0.25 mm
Width 69.85 Ā±0.25 mm
Weight 0.106 kg

Environmental Specifications
Acoustics
Idle Mode 22 dBA (average)
Seek Mode 0 25 dBA (average)
Temperature (Metric)
Operating 0Ā° C to 60Ā° C
Non-operating -40Ā° C to 70Ā° C
Humidity
Operating 8-90% RH non-condensing
Non-operating 5-95% RH non-condensing
Altitude (English)
Operating -1,000 feet to 10,000 feet
Non-operating -1,000 feet to 40,000 feet
Altitude (Metric)
Operating -305M to 3,050M
Non-operating -305M to 12,200M
Vibration
Operating
Linear 10-500 Hz, 1.0G (0 to peak)
Random 10-500 Hz (0.309 gĀ² / Hz)

Electrical Specifications
Average Power Requirements
Read/Write 1.75W
Idle 0.8W
Standby 0.2W
Sleep 0.2W

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