NLX (motherboard form factor)

For other uses, see NLX (disambiguation).

Computer form factors

Name	PCB size (mm)
WTX	356 × 425
AT	350 × 305
Baby-AT	330 × 216
BTX	325 × 266
ATX	305 × 244
EATX (Extended)	305 × 330
LPX	330 × 229
microBTX	264 × 267
NLX	254 × 228
Ultra ATX	244 × 367
microATX	244 × 244
DTX	244 × 203
FlexATX	229 × 191
Mini-DTX	203 × 170
EBX	203 × 146
microATX (min.)	171 × 171
Mini-ITX	170 × 170
EPIC (Express)	165 × 115
ESM	149 × 71
Nano-ITX	120 × 120
COM Express	125 × 95
ESMexpress	125 × 95
ETX/XTX	114 × 95
Pico-ITX	100 × 72
PC/104 (-Plus)	96 × 90
ESMini	95 × 55
Qseven	70 × 70
mobile-ITX	60 × 60
CoreExpress	58 × 65

NLX (New Low Profile Extended) was a form factor proposed by Intel and developed jointly with IBM, DEC, and other vendors for low profile, low cost, mass-marketed retail PCs. Release 1.2 was finalized in March 1997 and release 1.8 was finalized in April 1999. NLX was similar in overall design to LPX, including a riser card and a low-profile slimline case. It was modernized and updated to allow support for the latest technologies while keeping costs down and fixing the main problems with LPX.

Many slimline systems that were formerly designed to fit the LPX form factor were modified to fit NLX. NLX is a true standard, unlike LPX, making interchangeability of components easier than it was for the older form factor. IBM, Gateway, and NEC produced a fair number of NLX computers in the late 1990s, primarily for Socket 370 (Pentium II-III and Celeron), but NLX never enjoyed the widespread acceptance that LPX had. Most importantly, one of the largest PC manufacturers, Dell decided against using NLX and created their own proprietary motherboards for use in their slimline systems. Although many of these computers and motherboards are still available secondhand, new production has essentially ceased, and in the slimline and small form factor market, NLX has been superseded by the Micro-ATX, FlexATX, and Mini-ITX form factors.

External links

• NLX Specification, Release 1.8
• PC Guide - NLX