Seagate ST9250412AS Momentus 7200 FDE.1 SATA Product Manual - Page 11

Drive specifications

Page 11 highlights

2.0 Drive specifications Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. 2.1 Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Table 2: Drive specifications Drive specification Formatted Gbytes (512 bytes/sector)* Guaranteed sectors Bytes per sector Physical read/write heads Discs Cache (Mbytes) Recording density in BPI (bits/inch max) Track density TPI (tracks/inch max) Areal density (Gbits/inch2 max) Spindle speed (RPM) Internal transfer rate (Gbits/sec max) I/O data transfer rate (Gbits/sec max) ATA data-transfer modes supported Height (max) Width (max) Length (max) Weight (typical) Average latency (msec) Power-on to ready (sec typical) Standby to ready (sec typical) Track-to-track seek time, read (msec typical) Average seek, read (msec typical) Average seek, write (msec typical) Startup current, +5V (max) Seek power (typical) ST9320424AS ST9250424AS ST9160414AS ST9120414AS ST9320424ASG ST9250424ASG ST9160414ASG ST9120414ASG 320 250 160 120 625,142,448 512 4 2 488,397,168 3 2 312,581,808 2 1 234,441,648 2 1 16 1,334k 190k 253 7.200 1.1 3.0 SATA 1.5/3.0, Serial ATA Revision 2.6 PIO modes 0-4 Multiword DMA modes 0-2 Ultra DMA modes 0-6 9.5 +/- 0.2 mm (0.374 +/- .0078 inches) 69.85 +/- .249 mm (2.75 +/- .0098 inches) 100.3 +/- 0.25 mm (3.95 +/- .010 inches) 110 grams (0.238 lb) 4.17 4.0 3.0 105 grams (0.227 lb) 1.0 11.0 13.0 1.0 amps 2.3 watts ST980414ASG 80 156,301,488 1 1 Momentus 7200 FDE.1 SATA Product Manual, Rev. B 5

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Momentus 7200 FDE.1 SATA Product Manual, Rev. B
5
2.0
Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power.
2.1
Specification summary table
The specifications listed in this table are for quick reference. For details on specification measurement or defi-
nition, see the appropriate section of this manual.
Table 2:
Drive specifications
Drive specification
ST9320424AS
ST9320424ASG
ST9250424AS
ST9250424ASG
ST9160414AS
ST9160414ASG
ST9120414AS
ST9120414ASG
ST980414ASG
Formatted Gbytes (512 bytes/sector)*
320
250
160
120
80
Guaranteed sectors
625,142,448
488,397,168
312,581,808
234,441,648
156,301,488
Bytes per sector
512
Physical read/write heads
4
3
2
2
1
Discs
2
2
1
1
1
Cache (Mbytes)
16
Recording density in BPI (bits/inch max)
1,334k
Track density TPI (tracks/inch max)
190k
Areal density (Gbits/inch
2
max)
253
Spindle speed (RPM)
7.200
Internal transfer rate (Gbits/sec max)
1.1
I/O data transfer rate (Gbits/sec max)
3.0
ATA data-transfer modes supported
SATA 1.5/3.0, Serial ATA Revision 2.6
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Height (max)
9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max)
69.85 +/- .249 mm (2.75 +/- .0098 inches)
Length (max)
100.3 +/- 0.25 mm (3.95 +/- .010 inches)
Weight (typical)
110 grams (0.238 lb)
105 grams (0.227 lb)
Average latency (msec)
4.17
Power-on to ready (sec typical)
4.0
Standby to ready (sec typical)
3.0
Track-to-track seek time, read (msec typical)
1.0
Average seek, read (msec typical)
11.0
Average seek, write (msec typical)
13.0
Startup current, +5V (max)
1.0 amps
Seek power (typical)
2.3 watts