Balanced Technology Extended: Intel's interface specification developed as an evolutionary follow-on to the ATX form factor and designed to better accommodate modern-day PC technologies and lead to cooler, quieter, and more efficient PCs of all sizes.
A desktop design featuring a two-fan system that keeps a system cooler and thus improves reliability and overall system life. Stands for Balanced Technology Extended.
BTX (for Balanced Technology Extended) is a form factor for PC motherboards, originally slated to be the replacement for the aging ATX motherboard form factor in late 2004 and early 2005. It has been designed to alleviate some of the issues that arose from using newer technologies (which often demand more power and create more heat) on motherboards compliant with the circa-1996 ATX specification. The ATX and BTX standards were both proposed by Intel.