TI-99/4A FAQ: Joysticks and controllers - arcadeshopper.com
Amazon.com: 2 Pack 3.2ft USB Power Charger Cable Data Charging Cord for TI-84 Plus CE/ Plus C, TI Nspire CX/ CX CAS Texas Instruments Graphing Calculators, PS3 Controller and More - Type
TI-99/4A TI-99 4A Joystick Controller Game Control Pad Texas Instrumen – RetroGameBoyz LLC
DLPC3434 DLP Digital Controller - TI | Mouser
DLPC3430/35 DLP® Digital Controller - TI | Mouser
UC2845A Texas Instruments 500KHz PWM Controller AU STOCK FAST POSTAGE – ASA College: Florida