1/2 Brief Specification Client HDD (2.5-type) MK5056GSY / MK3256GSY / MK2556GSY / MK1656GSY ITEM Basic specification Interface Interface speed Formatted Capacity Number of data heads Number of disks Number of User data cylinders Bytes per sector (HOST) Bytes per sector(DISK) Logical Blocks (LBA) Maximum areal density Environmental compliance Performance Buffer size Rotation speed Average Latency time Internal transfer rate Average seek time Track to track seek time Max. seek time Reliability Load/Unload Error rate non-recoverable Supply Voltage MK5056GSY MK3256GSY Serial ATA 2.6 / ATA8 3.0Gb/s 500GB 4 2 166,250 512 byte 512 byte 976,777,168 Serial ATA 2.6 / ATA8 3.0Gb/s 320GB 3 2 154,000 512 byte 512 byte 625,142,448 612Mbit/mm2 (395Gbit/in2) RoHS compatible 521Mbit/mm2 (336Gbit/in2) RoHS compatible 16MiB 7,200rpm 4.16 ms 834 to 1255 Mb/s (Typ.) 11ms(Read) , 12ms(Write) 1ms 19ms 16MiB 7,200rpm 4.16 ms 834 to 1255 Mb/s (Typ.) 11ms(Read) , 12ms(Write) 1ms 19ms 600,000 times 600,000 times 1/1014 bit read 1/1014 bit read 5 V ±5% 5 V ±5% 5.5W (Max.) 2.3W (Typ.) 2.1W (Typ.) 1.0W (Typ.) 0.16W (Typ.) 0.13W (Typ.) 5.5W (Max.) 2.3W (Typ.) 2.1W (Typ.) 1.0W (Typ.) 0.16W (Typ.) 0.13W (Typ.) 0.0020 ⁄ I 0.0032 ⁄ I Height Width Depth Weight Temperature 9.5mm 69.85mm 100.0mm 114g (Typ.) 9.5mm 69.85mm 100.0mm 114g (Typ.) Operating Non-Operating Shipping Vibration/Shock 5 to 55°C -40 to 60°C -40 to 70°C 5 to 55°C -40 to 60°C -40 to 70°C 9.8m/s2 (1.0G) 49m/s2 (5.0G) 3,185m/s2 (325G) (2ms half sine) 8,820m/s2 (900G) (1ms half sine) 9.8m/s2 (1.0G) 49m/s2 (5.0G) 3,185m/s2 (325G) (2ms half sine) 8,820m/s2 (900G) (1ms half sine) 25dB 25dB 25dB 25dB g Allowable Voltage Power consumption Start Seek Read/Write Low power Idle Stand-bye Sleep Energy Consumption Efficiency /Category name Dimension Vibration (op) Vibration (non-op) Shock (op) Shock (non-op) Acoustics Idle (ave.) Seek *Definition of Capacity: TOSHIBA defines a megabyte(MB) as 1,000,000bytes, and a gigabyte(GB) as 1,000,000,000 bytes. *Energy Consumption Efficiency: Energy consumption efficiency is calculated based on power consumption divided by formatted capacity, as defined by Japanese law. 2/2 ITEM Basic specification Interface Interface speed Formatted Capacity Number of data heads Number of disks Number of User data cylinders Bytes per sector (HOST) Bytes per sector(DISK) Logical Blocks (LBA) Maximum areal density Environmental compliance Performance Buffer size Rotation speed Average Latency time Internal transfer rate Average seek time Track to track seek time Max. seek time Reliability Load/Unload Error rate non-recoverable Supply Voltage MK2556GSY MK1656GSY Serial ATA 2.6 / ATA8 3.0Gb/s 250GB 2 1 166,250 512 byte 512 byte 488,397,168 Serial ATA 2.6 / ATA8 3.0Gb/s 160GB 2 1 146,728 512 byte 512 byte 312,581,808 612Mbit/mm2 (395Gbit/in2) RoHS compatible 389Mbit/mm2 (251Gbit/in2) RoHS compatible 16MiB 7,200rpm 4.16 ms 834 to 1255 Mb/s (Typ.) 11ms(Read) , 12ms(Write) 1ms 19ms 16MiB 7,200rpm 4.16 ms 834 to 1255 Mb/s (Typ.) 11ms(Read) , 12ms(Write) 1ms 19ms 600,000 times 600,000 times 1/1014 bit read 1/1014 bit read 5 V ±5% 5 V ±5% 5.5W (Max.) 2.3W (Typ.) 2.1W (Typ.) 1.0W (Typ.) 0.16W (Typ.) 0.13W (Typ.) 5.5W (Max.) 2.3W (Typ.) 2.1W (Typ.) 1.0W (Typ.) 0.16W (Typ.) 0.13W (Typ.) 0.0040 ⁄ F 0.0063 ⁄ F Height Width Depth Weight Temperature 9.5mm 69.85mm 100.0mm 97g (Typ.) 9.5mm 69.85mm 100.0mm 97g (Typ.) Operating Non-Operating Shipping Vibration/Shock 5 to 55°C -40 to 60°C -40 to 70°C 5 to 55°C -40 to 60°C -40 to 70°C 9.8m/s2 (1.0G) 49m/s2 (5.0G) 3,185m/s2 (325G) (2ms half sine) 8,820m/s2 (900G) (1ms half sine) 9.8m/s2 (1.0G) 49m/s2 (5.0G) 3,185m/s2 (325G) (2ms half sine) 8,820m/s2 (900G) (1ms half sine) 23dB 23dB 23dB 23dB Allowable Voltage p Power consumption Start Seek Read/Write Low power Idle Stand-bye Sleep Energy Consumption Efficiency /Category name Dimension Vibration (op) Vibration (non-op) Shock (op) Shock (non-op) Acoustics Idle (ave.) Seek *Definition of Capacity: TOSHIBA defines a megabyte(MB) as 1,000,000bytes, and a gigabyte(GB) as 1,000,000,000 bytes. *Energy Consumption Efficiency: Energy consumption efficiency is calculated based on power consumption divided by formatted capacity, as defined by Japanese law.