4 Constellation.2 Serial ATA Product Ma nual, Rev. B
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:
Unless otherwise stated, the information in this manual applies to standard and Self-Encrypting Drive models
Product data communicated in this manual is specific only to the model numbers listed in this manual. The data
listed in this manual may not be predictive of future generation specifications or requirements. If you are
designing a system which will use one of the models listed or future generation products and need further
assistance, please contact your Field Applications Engineer (FAE) or our global support services group as
shown in Section 1.0.

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.
Model Number Self-Encrypting Drive (SED) FIPS 140-2 Level 2 certified
ST91000640NS No No
ST91000641NS Yes No
ST91000642NS Yes Yes
ST9500620NS No No
ST9500621NS Yes No
ST9500622NS Yes Yes
ST9250610NS No No
ST9250611NS Yes No
ST9250612NS Yes Yes