Back to Table of Contents 4.9 HOW CAN A 4-PORT MODEL BE MODIFIED TO WORK WITH THE 2600 CARTRIDGE ADAPTER? Early 5200s that have four joystick ports cannot accept the VCS (2600) adapter unless modifications are made. However, Best Electronics offers an adapter kit which allows the use of the VCS adapter on 4-port models. *** NOTE -- Owners of 4-port 5200 machines with an "*" as part of the serial number are in luck. Atari apparently made a small run of VCS-compatible 4-port units before changing over to the 2-port units. Back to Table of Contents