Some items have been tested, others have not. There are scratches and stains. Some keycaps are missing. Please purchase as junk items. Items are already packed, so we cannot answer individual questions about the products. Model Numbers: E-YOOSO Z-686 DIERYA DK98SE REDRAGON K580RGB VATA AJAZZ NACODEX AK820 YUNZII B75 KEYNOVO IF98 logicool G913 RAZER HUNTSMAN V3 TKL ATK75 Also, wireless membrane and old mechanical keyboards. Mechanical Keyboard keyboard Custom Keyboard Gaming Rapid Trigger Magnetic Switch Low Profile