Seagate 5400.2 SATA manual Removable Drive Cartridge specifications, Specification summary

2.0Removable Drive Cartridge specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the words and phrases RDC, removable drive cartridge, drive, and this drive are used throughout this manual to indicate the 120GB Momentus 5400.2 SATA Removable Drive Cartridge (RDC).

2.1Specification summary

The specifications listed below are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.

Drive specification	120GB RDC (using ST9120821AS drive)
Formatted Gbytes (512 bytes/sector)	120
Guaranteed sectors	234,441,648
Bytes per sector	512
Default sectors per track	63
Default read/write heads	16
Default cylinders	16,383
Physical read/write heads	4
Discs	2
Recording density in BPI	778k
(bits/inch max)
Track density TPI (tracks/inch max)	126k
Areal density (Mbits/inch2 max)	98.2
Spindle speed (RPM)	5,400
Internal transfer rate	42
(Mbytes/sec max)
I/O data transfer rate	150
(Mbytes/sec max)
ATA data-transfer modes supported	SATA 1.0, Serial ATA Revision 2.5 Specification; PIO modes
	0–4; Multiword DMA modes 0–2; UDMA modes 0–6
Cache buffer	8 Mbytes
Height (max)	24.50 +/- 0.2 mm (0.965 +/- .0078 inches)
Width (max)	85.70 +/- 0.3 mm (3.374 +/- 0.0118 inches)
Length (max)	112.28 +/- 0.3 mm (4.420 +/- 0.0118 inches)
Weight (typical)	172 grams (0.379 lb)
Average latency (msec)	5.56
Power-on to ready (typical)	3.5 sec
Standby to ready (typical)	3.0 sec
Startup current, (typical, peak)	+5V: 1.1A
Track-to-track seek time (msec typical)	1.0 (read), 1.5 (write)

Momentus 5400.2 SATA Removable Drive Cartridge Product Manual, Rev. C 3