Mechanical ZX81 keyboard。🇬🇧🇺🇸 US Sinclair ZX81: Part 1 (First Upgrades) [#TCE0705。Read a ZX81 keyboard with Arduinos and build things with it。JZX100 Chaser from Sekimura Collective #jzx100 #jzx100chaser。仕様4.4mm5極メス→4.4mm5極オス延長ケーブル長さ2.5m(誤差5cm程可)プラグは金メッキ処理16コア 銅 透明被膜