GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB by L
GC USB Memory Adaptor 64M for GameCube
MemCard PRO GC for GameCube (Smoke Black)
Amazon.com: Y Team Controller Adapter for Gamecube, Compatible with Nintendo Switch, Super Smash Bros Switch Gamecube Adapter for WII U/PC with 4 Port : Video Games
Amazon.com: 4 Controllers for Gamecube,with 4 Extension Cables and 4-Port USB Adapter for Switch PC Wii U Console (BBRG) : Video Games
Amazon.com: Ambertown SD Memory Card Stick Card Reader Converter Adapter for Nintendo Wii NGC Gamecube Console : Video Games
1/2pcs Brand New Gc2sd Micro Sd Card Adapter Memory Card Adapter Swiss Cardreader For Nintendo Gamecube Ngc/wii Game Consoles - Accessories - AliExpress
Bitfunx HDMI Line Doubler Adapter GC2HDMI for Nintendo Gamecube NGC Digital to HDMI – Bitfunx
Direct memory card to PC (without wii) : r/Gamecube
Taykoo for Spare SD2SP2 TF Card Adapter + Swiss Mini DVD Boot Disk For Nintendo Gamecube NGC NTSC - Walmart.com