Elo TouchSystems 2403LM 24" Full HD Medical Touchscreen Monitor with TouchPro (Black, Includes Stand) - Manual (Page 11)

User Manual ET1903LM, ET2203LM, ET2403LM, ET2703LM REVB 11
Magnetic Stripe Reader (MSR) Installation (Optional)
Your monitor comes with four pheripheral ports, located at the top, bottom, left and right sides of the monitor. To mount an MSR, remove one of the
pheripheral port covers with your finger tips and install the MSR as shown below. Please refer to the MSR Quick Install Guide (QIG) for set-up details.