MK6461GSYG / MK5061GSYG / MK3261GSYG / MK2561GSYG / MK1661GSYG

ITEM	MK6461GSYG	MK5061GSYG	MK3261GSYG
Basic specification
Interface	Serial ATA 2.6 / ATA8	Serial ATA 2.6 / ATA8	Serial ATA 2.6 / ATA8
Interface speed	3.0Gb/s	3.0Gb/s	3.0Gb/s
Formatted Capacity	640GB	500GB	320GB
Number of data heads	4	4	2
Number of disks	2	2	1
Number of User data cylinders	187,231	168,511	187,231
Bytes per sector (HOST)	512	512	512
Bytes per sector(DISK)	512	512	512
Logical Blocks (LBA)	1,250,263,728	976,773,168	625,142,448
Maximum areal density	793.8Mbit/mm2 (512.1Gbit/in2)	619.7Mbit/mm2 (399.8Gbit/in2)	793.8Mbit/mm2 (512.1Gbit/in2)
Environmental compliance	RoHS compliant	RoHS compliant	RoHS compliant
Performance
Buffer size	16MB	16MB	16MB
Rotation speed	7,200rpm	7,200rpm	7,200rpm
Average Latency time	4.16 ms	4.16 ms	4.16 ms
Average seek time	11ms(Read), 12ms(Write)	11ms(Read), 12ms(Write)	11ms(Read), 12ms(Write)
Track to track seek time	1ms	1ms	1ms
Max. seek time	19ms	19ms	19ms
Reliability
Load/Unload	600,000 times	600,000 times	600,000 times
Error rate non-recoverable	1/1014 bit read	1/1014 bit read	1/1014 bit read
Supply Voltage
Allowable Voltage	5V ±5%	5V ±5%	5V ±5%
Power consumption
Start	5.5W (Max.)	5.5W (Max.)	5.5W (Max.)
Seek	2.3W (Typ.)	2.3W (Typ.)	2.3W (Typ.)
Read/Write	2.1W (Typ.)	2.1W (Typ.)	2.1W (Typ.)
Low power Idle	0.8W (Typ.)	0.8W (Typ.)	0.8W (Typ.)
Stand-bye	0.16W (Typ.)	0.16W (Typ.)	0.16W (Typ.)
Sleep	0.13W (Typ.)	0.13W (Typ.)	0.13W (Typ.)
Energy Consumption Efficiency /Category name	0.0013 I	0.0016 I	0.0025 F
Dimension
Height	9.5mm	9.5mm	9.5mm
Width	69.85mm	69.85mm	69.85mm
Depth	100.0mm	100.0mm	100.0mm
Weight	110g (Typ.)	110g (Typ.)	92g (Typ.)
Temperature
Operating	5 to 55°C	5 to 55°C	5 to 55°C
Non-Operating	-40 to 65°C	-40 to 65°C	-40 to 65°C
Shipping	-40 to 70°C	-40 to 70°C	-40 to 70°C
Vibration/Shock
Vibration (op)	9.8m/s2 (1.0G)	9.8m/s2 (1.0G)	9.8m/s2 (1.0G)
Vibration (non-op)	49m/s2 (5.0G)	49m/s2 (5.0G)	49m/s2 (5.0G)
Shock (op)	3,185m/s2 (325G) (2ms half sine)	3,185m/s2 (325G) (2ms half sine)	3,185m/s2 (325G) (2ms half sine)
Shock (non-op)	8,820m/s2 (900G) (1ms half sine)	8,820m/s2 (900G) (1ms half sine)	8,820m/s2 (900G) (1ms half sine)
Acoustics
Idle (ave.)	26dB	26dB	23dB
Seek	26dB	26dB	23dB
Special Features
Encryption Algorithm [1]	AES 256 bit
Wipe Technology	Available

[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, and a gigabyte(GB) as 1,000,000,000 bytes.
*Energy Consumption Efficiency Category name is based on the Standards of Judgment for Factories etc. on the Low Concerning the Rational Use of Energy in Japan, as of FY2007.

MK6461GSYG / MK5061GSYG / MK3261GSYG / MK2561GSYG / MK1661GSYG

ITEM	MK2561GSYG	MK1661GSYG
Basic specification
Interface	Serial ATA 2.6 / ATA8	Serial ATA 2.6 / ATA8
Interface speed	3.0Gb/s	3.0Gb/s
Formatted Capacity	250GB	160GB
Number of data heads	2	1
Number of disks	1	1
Number of User data cylinders	168,511	187,231
Bytes per sector (HOST)	512	512
Bytes per sector(DISK)	512	512
Logical Blocks (LBA)	488,397,168	312,581,808
Maximum areal density	619.7Mbit/mm2 (399.8Gbit/in2)	793.8Mbit/mm2 (512.1Gbit/in2)
Environmental compliance	RoHS compliant	RoHS compliant
Performance
Buffer size	16MB	16MB
Rotation speed	7,200rpm	7,200rpm
Average Latency time	4.16 ms	4.16 ms
Average seek time	11ms(Read), 12ms(Write)	11ms(Read), 12ms(Write)
Track to track seek time	1ms	1ms
Max. seek time	19ms	19ms
Reliability
Load/Unload	600,000 times	600,000 times
Error rate non-recoverable	1/1014 bit read	1/1014 bit read
Supply Voltage
Allowable Voltage	5V ±5%	5V ±5%
Power consumption
Start	5.5W (Max.)	5.5W (Max.)
Seek	2.3W (Typ.)	2.3W (Typ.)
Read/Write	2.1W (Typ.)	2.1W (Typ.)
Low power Idle	0.8W (Typ.)	0.8W (Typ.)
Stand-bye	0.16W (Typ.)	0.16W (Typ.)
Sleep	0.13W (Typ.)	0.13W (Typ.)
Energy Consumption Efficiency /Category name	0.0032 F	0.0050 F
Dimension
Height	9.5mm	9.5mm
Width	69.85mm	69.85mm
Depth	100.0mm	100.0mm
Weight	92g (Typ.)	92g (Typ.)
Temperature
Operating	5 to 55°C	5 to 55°C
Non-Operating	-40 to 65°C	-40 to 65°C
Shipping	-40 to 70°C	-40 to 70°C
Vibration/Shock
Vibration (op)	9.8m/s2 (1.0G)	9.8m/s2 (1.0G)
Vibration (non-op)	49m/s2 (5.0G)	49m/s2 (5.0G)
Shock (op)	3,185m/s2 (325G) (2ms half sine)	3,185m/s2 (325G) (2ms half sine)
Shock (non-op)	8,820m/s2 (900G) (1ms half sine)	8,820m/s2 (900G) (1ms half sine)
Acoustics
Idle (ave.)	23dB	23dB
Seek	23dB	23dB
Special Features
Encryption Algorithm [1]	AES 256 bit
Wipe Technology	Available

[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, 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.