Toshiba today announced that samples of two new large capacity nearline hard disk drives (HDDs) are available now. The 3.5-inch 7,200 rpm MG Series includes both SATA and SAS versions, "MG03ACA400" and "MG03SCA400" respectively, that deliver 4TB of storage, the largest capacity yet offered by Toshiba. The company is also offering samples of lower capacity models in each series.

Both the MG03SCA400 series and MG03ACA400 series support a sanitize overwrite function that allows IT administrators to write a predetermined data pattern across the entire user storage area on the disk, effectively erasing all previously written data. The sanitize overwrite operation can be performed before re-allocation, redeployment or retirement of the storage device.

Models	MG03SCA400	MG03ACA400
Basic specification
Interface	SAS-2.0 (1.5 Gbps, 3.0 Gbps, 6.0 Gbps)	SATA 6 Gbps
Capacity	4 TB
Environmental compliance	RoHS compatible
Performance
Buffer size	64 MiB FIFO ring buffer
Rotation speed	7,200rpm
Average Latency time	4.17 ms
Average seek time (read)	8.5 ms
Average seek time (write)	9.5 ms
Sustained transfer rate (Max.)	165 MB/s
Reliability
Load/Unload	600,000 times
MTTF	1,200,000 hours
Operating condition	24 hours/day, 7days/week
Supply Voltage
Allowable voltage	5 V ± 5%, 12 V ± 5%
Power consumption
Read/Write	11.3 W
Low Power Idle	6.0 W
Energy Consumption Efficiency/Category name	0.0015/C
Dimension
Height	26.1 mm
Width	101.6 mm
Depth	147 mm
Weight	720g (Max.)
Temperature
Operating	5 to 55℃
Non-Operating	-40 to 70℃
Vibration/Shock
Vibration resistance (op)	7.35 m/s2 [0.75G, 5 to 300 Hz] 2.45 m/s2 [0.25G, 300 to 500 Hz]
Vibration resistance (non-op)	49 m/s2 [5G, 5 to 500 Hz]
Shock (Op.)	686 m/s2 [70G, 2 ms duration]
Shock (non-Op.)	2,940 m/s2 [300G, 2 ms duration]
Acoustics
Acoustics	31dB
Sequrity
Sanitize	Over Write