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4 Constellation ES.2 Serial ATA Product Manual, Rev. D
3.0 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:
3.1 Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measure-
ment or definition, see the appropriate section of this manual.
Table 1: Drive specifications summary
Model Number Self-Encrypting Drive (SED) FIPS 140-2 Level 2 (Review Pending)
ST33000652NS Yes Yes
ST33000651NS Yes No
ST33000650NS No No
Drive specification ST33000650NS
ST33000651NS
ST33000652NS
Formatted (512 bytes/sector)* 3TB
Guaranteed sectors 5,860,533,168
Heads 10
Discs 5
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