POS Repair Shop / Micros Workstation 4 Parts Micros Workstation 4 Parts 400498-001 WS4 MSR Credit Card Reader 400511-XXX WS4 Touch Screen Glass 400512-XXX Micros WS4 LCD Display Screen 400514-xxx WS4 Motherboard / System Board 500625-001 WS4 Plastic Pivot Base