I am selling this item because I no longer need it. There are no noticeable stains, but please understand that this is a used item and that I am a private seller. It was working without any problems when in use, and I have confirmed that it powers on. I plan to ship it in a box with bubble wrap for protection. BUFFALO wireless LAN router, model WSR-1166DHPL2/N, supports IEEE802.11b/g/n. Includes the instruction manual and charging adapter. - Brand: BUFFALO - Model: WSR-1166DHPL2/N - Input Voltage: 12V 1.0A - IEEE Standards: IEEE802.11b/g/n