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iMac Late 2009 - Bluetooth and USB keyboard and mouse do not work on Big Sur installation screen · Issue #43 · barrykn/big-sur-micropatcher · GitHub
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Wired Keyboard for Mac OS, All-Aluminum Frame, Plug-N-Play Cable Connection, Desktop USB Keyboard with Numeric Keypad Compatible with iMac Computer or MacBook Laptop by Yivandi -White Keyboards - Newegg.com
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