Common Building Block

Last updated
Common Building Block
Developer Intel Corporation
Type Laptop platform
Release date2005
Successor Ultrabook specification

Common Building Block (CBB) was a set of technical standards for laptop components introduced by Intel in 2005, and adopted by some manufacturers, including Asus, Compal, and Quanta.

Contents

Creation

In 2004, the Common Building Block program promoted the use of industry-accepted mechanical and electrical specifications for three notebook components: 14.1-inch, 15-inch, and 15.4-inch liquid crystal displays (LCDs); 9.5mm and 12.7mm optical disc drives (ODDs); and 2.5-inch hard disk drives (HDDs). The program consisted of:

The defunct repository site mobileformfactors.org was established to standardize components, and included:

Hard Drives

Only the 2.5 inch HDD is a component used by CBB and its design guide does not address the integration of 1.8 inch HDD drives. [1]

A notebook should support 2.5 inch SATA or PATA HDDs that are designed based on the SFF Committee Specifications, The target CBB thickness for 2.5 inch HDDs in 2006 is 9.5mm with a tolerance of +-0.2mm, as that was the form factor most used. [1]

The HDD could be mounted with side or bottom mounting, a hard drive should comply with both, but the system could choose whichever was best suited for the application. [1]

The electrical Interface for SATA HDDs should follow the electrical interface standards set by the Serial ATA International Organization (SATA-IO). For PATA HDDs they should support the specifications defined by the T13 Committee. [1]

References

  1. 1 2 3 4 "Wayback Machine" (PDF). www.mobileformfactors.org. Archived from the original (PDF) on 2007-11-09. Retrieved 2025-11-18.