6
Momentus 7200.2 SATA Product Manual, Rev. E
2.4 Physical organizat ion 2.5 Recording and interface tech no logy2.6 Physical characteristics
Drive model Read/write heads Number of discs
ST9200420AS and ST9200420ASG 4
2
ST9160823AS and ST9160823ASG
ST9120823AS 3
ST9100821AS
ST980813AS and ST980813ASG 2 1
200 GB models 160 - 80 GB models
Interface Serial ATA (SATA)
Recording density BPI (bits/inch max) 1,014,000 853,000
Track density TPI (tracks/inch max) 162,600 155,000
Areal density (Gbits/inch2 max) 169.4 131
Spindle speed (RPM) (± 0.2%) 7,200
Maximum Internal transfer rate (Mbits/sec) 850 711
Sustained transfer rate OD (Mbytes/sec max) 69.5 59
I/O data-transfer rate (Mbytes/sec max) 300 (can also be configured for 150MB/s operation)
Interleave 1:1
Cache buffer 16 Mbytes (16,384 kbytes) 8 Mbytes (8,192 kbytes)
Drive specification
Height (mm)
(inches) 9.5 +/-0.2
0.374 +/-0.0078
Width (mm)
(inches) 69.85 +/-0.25
2.75 +/-0.00984
Length (mm)
(inches) 100.5+/- 0.25
3.957 +/- 0.00984
Maximum weight (grams)
(pounds) 115 grams
(0.254 lb)