The POS (Point Of Sale) Data Logger is similar to a portable magnetic stripe reader in that it logs data and can be used for memory back-up in case of power failure. This device quickly connects in-line on the POS terminal. We're sure you have seen these POS terminals in just about EVERY store & some terminals have a computer-like keyboard with a built-in credit card reader, others have a separate credit card reader and some even have a credit card reader with a PIN pad where you enter your PIN # if you are using a debit card. This device logs approximately 15,000 card swipes/data in its GIANT MEMORY. It grabs the ENTIRE contents of all data passing through the terminal including credit card or debit card #, expiration date, discretionary data, etc., along with PIN # (if Pin pad is used). It appears like an ordinary RFI suppressor commonly found on many cables plugged into these machines. It will work on ANY POS machine that connects to a PC via the PS2, AT, XT port. Once the data is logged, the device can be EASILY AND QUICKLY removed (takes about 2 seconds for installation or removal) from the store POS machine and plugged into another computer where you can download and save the data. The primary use for this device is in case of a computer and/or power failure and transactions are lost, then the device can be used to reconstruct transactions to be re-processed. Complete instructions are included. Photos show various examples of the logger connected to a POS terminal. Various POS terminals can be special ordered, please email with your needs.