This is an Apple wireless LAN router. Please refer to the following link for detailed specifications: https://support.apple.com/kb/SP672? 【Important】Please read the following and only purchase if you agree: ・This item was used by a non-professional in a general household. ・There are some minor scratches and stains on the main unit, power adapter, and cables. ・There are no instructions or box. ・It was working without any problems until the end of use. ・It was used in a pet-free/non-smoking environment. ・Accessories are as shown in the photos. ・The power cord that supplies power to the AC adapter is a genuine product. ・When powered on for listing, it started up without any problems. ・The unit has been reset to factory settings using the button on the main unit. ・Due to being a privately stored item, no returns or refunds are accepted. ※Operation has been confirmed and a simple cleaning has been done, but please understand that this is only a visual inspection by a non-professional and that it is a used item before purchasing.