This allows you to connect to the internet via power outlets, even in indoor environments where Wi-Fi isn't available (you still need a modem, router, and a contract with an internet service provider as usual). The Panasonic PLC adapter, BL-PA510KT, achieves high-speed communication of up to 90Mbps. I connected and used it once after purchase, but I didn't need this level of equipment for my indoor environment, so I haven't used it since. The box is damaged, but the product itself is like new. - Brand: Panasonic - Model: BL-PA510KT - Type: PLC Adapter - Security: AES 128 bit - Communication Speed: Up to 90Mbps - Included Accessories: Instruction manual, start pack - Functions: MASTER, LAN, SETUP, PLC indicators Thank you for viewing.