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CONSTELLATION ES.2 SERIAL ATA PRODUCT MANUAL, REV. H 5
2.0 DRIVE SPECIFICATIONS
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the
phrases the drive and this drive are used throughout this manual to indicate the following drive models:
2.1 SPECIFICATION SUMMARY TABLES
The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the
appropriate section of this manual.
Table 1Drive specifications summary
MODEL NUMBER SELF-ENCRYPTING DRIVE (SED) FIPS 140-2 LEVEL 2
ST33000652NS Yes Yes
ST33000651NS Yes No
ST33000650NS No No
ST32000647NS Yes Yes
ST32000646NS Yes No
ST32000645NS No No
Drive specification
ST33000650NS
ST33000651NS
ST33000652NS
ST32000645NS
ST32000646NS
ST32000647NS
Formatted (512 bytes/sector)* 3TB 2TB
Guaranteed sectors 5,860,533,168 3,907,029,168
Heads 10 7/8
Discs 5 4
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (Kb/in max) 1638
Track density, KTPI (ktracks/in avg.) 270
Areal density, (Gb/in
2
avg) 444
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 1900
Sustained data transfer rate OD (MB/s max) 155
I/O data-transfer rate (MB/s max) 600
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 64MB
Weight: (maximum) 680g (1.499 lb) 655g (1.444 lb)
Average latency 4.16ms
Power-on to ready (sec max) 15
Standby to ready (sec max) 15
Track-to-track seek time (ms typical) 0.5 read
0.5 write
Average seek, read (ms typical) 8.5
Average seek, write (ms typical) 9.5
Startup current (typical) 12V (peak) 2.8A
2.0A (optional configuration through Smart Command Transport)
Voltage tolerance (including noise) 5V ±5%
12V ±5%