Check the listing for details. MEI CPI AE 2631 D7 AE2631 110V $1,$5,$10 & $20 Bill Validator Acceptor MARS. Condition: Used. Listed at 249.95 USD. CPI MARS MEI AE 2631 D7 bill validator that accepts all the new currency ($1,$2,$5,$10 and $20). The one in the photo has a 700 note bill stacker. But the one you will receive will have a 500 note bill stacker unless you request the 700. This is a 110v downstacker bill acceptor. The option switches are as follows: 1-way, 2-way and 4- way acceptance. High acceptance/ high security. Next there are option switches for accept/reject $2 and $20 bills. The next switch is harness enable/ always enable. The following switch is 4 pulse per dollar/1 pulse per dollar. Lastly is a switch for vending interface/ gaming interface. This will work in a wide range of applications that require acceptance of higher denomination bills. I have worked in the vending industry for 25+ years and Mars bill acceptors/validators are the most durable, dependable and most easily maintained validators on the market. If you find that your old coinco validators are constantly jamming and causing lost time on service calls and angry customers, try out a Mars validator and you will want to update your whole fleet with them! I ship out fast and it ships priority so you will get it quickly.Unit has been thoroughly tested. Thanks!!!