Check the listing for details. HP AGILENT Rythm / sbtx Tower A10 OVERHAUL SERVICE e4440a e4445a e4446a ,etc... Condition: Seller refurbished. Listed at 1650.00 USD. We at TEST CAL INSTRUMENTS can overhaul your rythms for any , e4440a ,e4445a, e4446a ,etc....8563ec, 8565ec, 8562e, 8564e.......... the service is 1400$ for up to 26.5 ghz and 1500$ for sbtx systems, you send us your bad one and we will repair it for 1400$/1500$> we will retune it so it performs like new again guaranteed ! turnaround time : a week or two. picture is a stock photo (you must send me your bad one ) this is not a purchase, ITS A SERVICE ONLY> PLEASE BE CLEAR BEFORE PURCHASING I ship anywhere in the world !!!! Please email me your address for shipping quote if outside the USA .I fully insure all Items and pack everything extremely well! Also If you buy the item> please send your address in this format:Name:Street address:City:State/Province:Area code/zip Code:Country:Phone Number : Make sure you send your phone number! it is required for national and international shipping! : Pickup is completely fine as well>im in so cal 91765 9095764320paul IMPORTANT! Due to PayPal's new rule that requires sellers to absorb the 3% fee on any returns. We will need to charge a 3 % restocking fee for any and all returns / refunds. NEW POLICY READ!!! Buyer to pay shipping for both ways for all returns.We will repair all parts and labor for no out of pocket cost to you except the shipping .For any refunds there is a 3 % restocking fee unless the item is exchanged which is easier for us often since we have multiples of these in stock usually . Buyer will also accrue another 3% paypal fee having the money returned by using paypal if paid via paypal originally. (this new rule is because of paypal’s new greedy way of not returning the original fee back on returns/refunds and I regrettably have to bring this new policy to you the buyers.)The point is you will save a lot more money doing an exchange over doing a return