Brief Specification Client HDD (2.5-type) MK6461GSYG / MK5061GSYG / MK3261GSYG / MK2561GSYG / MK1661GSYG ITEM Basic specification MK6461GSYG MK5061GSYG MK3261GSYG Serial ATA 2.6 / ATA8 3.0 Gbit/s Interface Interface speed Formatted Capacity Number of data heads 640GB 500GB 320GB 2 187,231 168,511 512 byte 187,231 1,250,263,728 976,773,168 625,142,448 619.7Mbit/mm2 (399.8Gbit/in2) RoHS compatible 793.8Mbit/mm2 (512.1Gbit/in2) 4 2 Number of disks Number of User data cylinders Bytes per sector (HOST) Bytes per sector(DISK) Logical Blocks (LBA) Maximum areal density 1 512 byte 2 793.8Mbit/mm (512.1Gbit/in2) Environmental compliance Performance 16MiB 7,200rpm Buffer size Rotation speed 4.16 ms Average Latency time Average seek time 11ms(Read), 12ms(Write) 1ms Track to track seek time Max. seek time Reliability 19ms 600,000 times Load/Unload Error rate non-recoverable Supply Voltage 1/1014 bit read 5V ±5% Allowable Voltage Power consumption Start Seek Read/Write 5.5W (Max.) 2.3W (Typ.) 2.1W (Typ.) Low power Idle Stand-bye 0.8W (Typ.) 0.16W (Typ.) 0.13W (Typ.) Sleep Energy Consumption Efficiency /Category name Dimension 0.0013 ⁄ I 0.0016 ⁄ I 0.0025 ⁄ F 9.5mm 69.85mm 100.0mm Height Width Depth Weight Temperature 110g (Typ.) 92g (Typ.) 5 to 55°C -40 to 65°C -40 to 70°C Operating Non-Operating Shipping Vibration/Shock 9.8m/s2 (1.0G) 49m/s2 (5.0G) 2 3,185m/s (325G) (2ms half sine) 8,820m/s2 (900G) (1ms half sine) Vibration (op) Vibration (non-op) Shock (op) Shock (non-op) Acoustics 26dB 26dB Idle (ave.) Seek Special Features [1] 23dB 23dB AES 256 bit Encryption Algorithm Available Wipe technology [1] AES 256 (256-bit Advanced Encryption Standard) is the selected encryption algorithm by U.S. National Institute of Standards and Technology. This is the standard form of encryption used by the U.S. government. AES defines three possible key lengths; 128, 192, 256 bits. The longer the key, the stronger the encryption. *Definition of Capacity: TOSHIBA defines a megabyte(MB) as 1,000,000bytes, a gigabyte(GB) as 1,000,000,000 bytes, and a terabyte(TB) as 1,000,000,000,000bytes. *Energy Consumption Efficiency: Energy consumption efficiency is calculated based on power consumption divided by formatted capacity, as defined by Japanese law. *Wipe technology: Toshiba's unique technology which automatically erases data when an HDD is accessed by an unregistered system. Brief Specification Client HDD (2.5-type) MK6461GSYG / MK5061GSYG / MK3261GSYG / MK2561GSYG / MK1661GSYG ITEM Basic specification MK2561GSYG Serial ATA 2.6 / ATA8 3.0 Gbit/s 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 250GB 2 160GB 1 1 1 168,511 187,231 512 byte 512 byte 488,397,168 16MiB 7,200rpm Rotation speed Track to track seek time Max. seek time Reliability Load/Unload Error rate non-recoverable Supply Voltage 312,581,808 2 793.8Mbit/mm2 619.7Mbit/mm (399.8Gbit/in2) (512.1Gbit/in2) RoHS compatible Buffer size Average Latency time Average seek time MK1661GSYG 4.16 ms 11ms(Read), 12ms(Write) 1ms 19ms 600,000 times 1/1014 bit read 5V ±5% Allowable Voltage Power consumption Start Seek Read/Write 5.5W (Max.) 2.3W (Typ.) 2.1W (Typ.) Low power Idle Stand-bye 0.8W (Typ.) 0.16W (Typ.) 0.13W (Typ.) Sleep Energy Consumption Efficiency /Category name Dimension Height Width Depth Weight Temperature Operating Non-Operating Shipping Vibration/Shock Vibration (op) Vibration (non-op) Shock (op) Shock (non-op) Acoustics Idle (ave.) Seek Special Features 0.0032 ⁄ F 0.0050 ⁄ F 9.5mm 69.85mm 100.0mm 92g (Typ.) 5 to 55°C -40 to 65°C -40 to 70°C 9.8m/s2 (1.0G) 49m/s2 (5.0G) 2 3,185m/s (325G) (2ms half sine) 8,820m/s2 (900G) (1ms half sine) 23dB 23dB [1] AES 256 bit Encryption Algorithm Available Wipe technology [1] AES 256 (256-bit Advanced Encryption Standard) is the selected encryption algorithm by U.S. National Institute of Standards and Technology. This is the standard form of encryption used by the U.S. government. AES defines three possible key lengths; 128, 192, 256 bits. The longer the key, the stronger the encryption. *Definition of Capacity: TOSHIBA defines a megabyte(MB) as 1,000,000bytes, a gigabyte(GB) as 1,000,000,000 bytes, and a terabyte(TB) as 1,000,000,000,000bytes. *Energy Consumption Efficiency: Energy consumption efficiency is calculated based on power consumption divided by formatted capacity, as defined by Japanese law. *Wipe technology: Toshiba's unique technology which automatically erases data when an HDD is accessed by an unregistered system.