Твърд диск 250GB, Samsung, SATA2, 7200rpm, 16MB, 2.5" (6.35 cm)

Samsung HM251JJ

Features

• Max. 125GB formatted capacity per disk • ATA Security Mode Feature Set
• SATA Native Command Queuing Feature • ATA S.M.A.R.T. Feature Set
• TuMR/PMR head with FOD technology • SilentSeek™
• Serial ATA 3.0Gbps Interface Support • NoiseGuard™
• Load/Unload Head Technology • Free Fall Sensor(optional)

Drive Configuration

Capacity * 250GB
Interface SATA 3.0Gbps
Buffer DRAM Size 16 MB
Byte per Sector 512
Rotational Speed 7,200 RPM

Performance Specifications

Average Seek time(typical) 11ms
Average Latency 4.17 ms
Data Transfer Rate / Media to/from Buffer(Max.) 1.1 Gbits/s
Data Transfer Rate / Buffer to/from Host(Max.) 300MB/s
Drive Ready Time(typical) 4 sec

Reliability Specifications

Non-recoverable Read Error 1 sector in 1014 bits
Controlled Ramp Load/Unload 600,000

Acoustics

Idle 2.6Bel
Performance Seek 2.8Bel

Environmental Specifications

Temperature / Operating 5 ~ 55 ?
Temperature / Non-operating -40 ~ 70 ?
Humidity(non-condensing) / Operating 5 ~ 90 %
Humidity(non-condensing) / Non-operating 5 ~ 95 %
Liner Shock(1/2 sine pulse) / Operating 325 G
Liner Shock(1/2 sine pulse) / Non-operating 900 G
Vibration / Operating 0.7Grms
Altitude(relative to sea level) / Operating -300 to 3000 m
Altitude(relative to sea level) / Non-operating -400 to 15000 m

Power Requirenents

Voltage +5V±5%
Spin-up Current(Max.) 1000 mA
Seek(typical) 2.65 W
Read/Write(typical) 2.55 W
Low Power Idle(typical) 0.8 W
Standby(typical) 0.25 W
Sleep(typical) 0.20 W

Physical Dimension

Height (Max.) 9.5 mm
Width 69.85 mm
Length 100 mm
Weight(avg.) 115 g

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