Seagate ST380211AS ユーザーズマニュアル

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Barracuda 7200.9 Serial ATA Product Manual, Rev. C
11
2.4
Recording and interface technology
2.5
Physical characteristics  
Interface
Serial ATA (SATA)
Recording method
16/17 EPRML
Recording density KBPI (kbits/inch max)
756.09
Track density KTPI (ktracks/inch avg)
141.95
Areal density (Gbits/inch
2
 avg)
103.8
Spindle speed (RPM) (± 0.2%)
7,200
Average latency (msec)
4.16
Internal data-transfer rate (Mbits/sec max)
867.2
Sustained data transfer rate OD (Mbytes/sec max)
80
I/O data-transfer rate (Mbytes/sec max)
300
Interleave
1:1
Cache buffer
   ST3160811AS
 
   ST3120811AS
 
   ST380811AS
8 Mbytes (8,192 kbytes)
   ST3160211AS
 
   ST3120211AS 
 
   ST380211AS
 
   ST340211AS
2 Mbytes (2,048 kbytes)
Maximum height
(mm)
 
(inches)
19.99
 
0.787
Maximum width
 
(mm)
 
(inches)
101.6
 
4.000 +/- 0.010
Maximum length
(mm)
 
(inches)
146.99
 
5.787
Max weight
     
160 and 120 GB models
     
80 and 40 GB model
380 grams (0.838 pounds)
365 grams (0.805 pounds)