I have 2 of these, unable to test. These terminals require connection to an IBM mainframe or mini computer to function properly and to be tested thoroughly. They are intended for collectors, enthusiasts of vintage computing equipment, or experienced technicians. See description for details.
Features:

• Vintage IBM Terminals: These terminals were manufactured in 1985 and represent a significant era in computing history.
• Functional Power Supply & Logic: Each terminal contains the necessary power supply and logic components for IBM-compatible display station operation.
• Compatibility: Designed for connection to IBM mainframe or mini computers, these terminals were used as replacements for the earlier IBM 5251 green screen dumb terminals on midrange systems.
• Original Design: Retaining the classic design elements of vintage IBM terminals, these units offer a nostalgic look and feel.
• Collector's Item: Perfect for collectors of vintage computing equipment or anyone interested in the history of computing Number: IBM 5291-2 X2790 8520850
• Voltage: 100-125V
• Frequency: 50/60Hz
• kVA: 0.11
• Terminals: Multiple terminal connections for data input and will ship UPS Ground same-day if ordered before 1pm Central, but no later than 1 business day handling time (business days are M-F). This will be packed with exquisite care.
  I will accept returns within 30 days, but please carefully review the notes and all pictures before buying!
  Please also feel free to message me if you have any questions.
  Thanks for looking!