Genuine Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter (A1790). This adapter allows you to connect Thunderbolt/Thunderbolt 2 devices, such as external hard drives and Thunderbolt docks, to Macs with Thunderbolt 3 (USB-C) or USB4 ports. It's also bidirectional, so you can connect Thunderbolt 3 devices to Macs with Thunderbolt/Thunderbolt 2 ports (macOS Sierra or later). 【Condition】 ・Brand new, unused (Genuine Apple product) ・Never been used ・Stored at home, so there may be very minor scratches visible depending on the light. ・Please refrain from purchasing if you are concerned about this. 【Shipping】 Rakuraku Mercari (anonymous shipping) Instant purchase OK, first come, first served! #AppleGenuine #ThunderboltAdapter #USB_CConversion #MacAccessories #NewUnused #A1790 #MacPeripherals #AppleAccessories