That’s a very long Internet cable



Which of these would be the best choice for installing an internal modem in a desktop computer?

A) AGP

B) PCIe

C) PCI

D) CNR

E) Mini PCI

F) Time to move away from that deserted island


The answer: D) CNR

A CNR (Communications and Networking Riser) is a slot type that is specifically designed for slower-speed connectivity such as a modem, network adapter, or audio card. CNR has effectively been replaced by PCI Express and motherboard built-in chipsets.

Want to know more? Watch “Motherboard Expansion Slots and Bus Speeds.”

Motherboard expansion slots come in many different shapes, sizes, and speeds. In this video, you’ll learn about the characteristics and speeds of popular motherboard expansion slots.