Compatibility: The console accessories only for Nintendo Switch OLED game cartridge card reader replacement（model NO：HEG-SUB-01）Please make sure your model before purchase.This Switch OLED dock card reader suits for all generation, it is the universal type game card reader for Nintendo Switch OLED. Application: When your NS Switch OLED can't recognized game cartridges, jack port damaged, headphones no sound , card not detected, the games no reading, the game re-loading, ect. Which means it will need to replace a new game card reader for your console, and our SD card slot tray replacement for Nintendo Switch OLED will help to solve that problem. Quality Guarantee: The NS Switch OELD cartridge card reader was made by good quality and produce by accurate machine, can restore the quality and size with your original game card reader. Full board with card slot reader, IC chip, flex cable and headphone connector. All Switch OELD game card slot tray have passed strictly QC double tested and 100% in good condition before shipment. Professional Tools: Comes with set tools: screwdriver/tweezers/crowbar/opening tool, professional repair tools helps to disassemble and replace the card reader more convenient. Suggestion Tips: If you do not have any installation experience, we suggest find the professional. If you need the installation guide,or have any problem about the cartridge game card reader for Nintendo Switch OLED. , please leave a message. 1*Card Reader Replacement 1*Set Tools