The SIGMA UD-01NA for Nikon, a lens accessory with USB-C connection. I purchased this along with a SIGMA lens and have only used it once to adjust lens parameters. I haven't touched it since, and the USB cable tie is still intact. It has been stored in a Toyo Living 120-liter, 4-tier dehumidifying cabinet (ED-120S) since purchase, as shown in the last photo, along with my other SLR cameras and lenses. The storage environment is excellent, and the condition is considered to be quite good. - Brand: SIGMA - Model: UD-01NA - Compatibility: FOR NIKON - Connection Terminal: USB-C