Up for auction today is one used Cisco power injector, model AIR-PSINJSYS1200. Please send me a message here, on eBay, if you need more pictures or more details. Three of this item are available; if more than one is purchased the shipping on additional units will be $3.00 USD each. Some eBay details: I expect payment within three days of end of auction. I accept Paypal only. I only ship to the lower 48 contiguous United States of America. A bid is a contract, do not bid if you are not willing to pay. Shipping and handling will be a flat charge of $8.00 USD. This item is sold in "Used As-Is" condition. No returns, no refunds. If you need any more pictures or details please send me a message here, on eBay, and I will respond as soon as possible; I check my messages daily. Thank you for looking at my auction.