Hello. Sign In
Standards Store
EIA-740 Revision A, September 1, 2016
Complete Document
Active, Most Current
Specification for Small Form Factor 88.9 millimeters (3.5 inches) Disk Drives
Additional Comments: ANSI APPROVED
Secure PDF  :
$98.00 USD
In Stock
Print  :
$98.00 USD
In Stock
Print + PDF :
$156.80 USD
You save 20%
In Stock
This specification defines the dimensions and connector locations of 88.9 millimeters (3.5 inches) small form factor disk drives.

The purpose of this specification is to define the external characteristics of small form factor disk drives so that products from different vendors may be used in the same mounting configurations.

This specification establishes the requirements for external dimensions, connectors, connector placement, and mounting holes to assist manufacturers in the systems integration of small form factor disk drives.