A "cartridge slot" refers to a space or opening in a device, usually a gaming console or computer, where a cartridge can be inserted. The cartridge contains a program or game that can be played or used on the device. Full definition
(Despite the fact that some of these systems had cartridge slots for additional features, or at the very least some form of expansion slot.) (retrogamenetwork.com)
He said Tectoy was bombarded with messages asking for consoles with cartridge slots and HDMI output and now they are studying all the valid contracts from the»90s that gives them the rights to release new Master System and Genesis systems. (seganerds.com)
In 2017, only our Sega consoles have a built in cartridge slot. (atgames.us)