Communications and networking riser

A CNR slot

Communications and networking riser (CNR) is a slot found on certain personal computer motherboards and used for specialized networking, audio, or telephony equipment. A motherboard manufacturer may choose to provide such functionality in any combination on a CNR card.[1] Introduced by Intel in 2000,[2] CNR slots were once commonly found on Pentium III–class motherboards, but have since been phased out in favor of on-board or embedded components.[3]

  1. ^ Cite error: The named reference mueller was invoked but never defined (see the help page).
  2. ^ Staff writer (June 12, 2000). "Intel Introduces New Chipset for Intel Pentium III Processor-based Performance PCs". EDP Weekly's IT Monitor. 41 (23). Millin Publishing: 1 – via Gale.
  3. ^ Cite error: The named reference comptia was invoked but never defined (see the help page).