Vintage QVS ATEN Pocket Buffer Model EB-120, Product No. CA277-SM. Easy to install and operate, compact size, auto data compression. Specifications are: 256K/1M Bytes Memory, Interface - 1DB-25 Female Parallel Input Port, 1 C-36 Male Centronics Output Port, Speed is 20K-40K Bytes/sec, LED-Buffer Status, Power Adapter- DC 9V, 100mA (min). Condition is new, in original box from old stock. Box shows wear/aging but item has never been used. Buyer should note that product is vintage and is no longer manufactured. Ships USPS Parcel Select or Priority Mail Packaging.