National Instruments NI PXI-1042Q Chassis 8-Slot 3U PXI Mainframe

National Instruments NI PXI-1000B 8 Slot 3U, PXI / Compact PCI, PXI Mainframe

NATIONAL INSTRUMENTS PXI-1052 4-PXI/8-SCXI SLOT MAINFRAME W/PXI-8175 (REF: 173Y)

HP - Agilent - Keysight E8401A 13-slot VXI Mainframe

National Instruments NI PXI-1000B 8 Slot 3U, PXI / Compact PCI, PXI Mainframe

Used National Instruments NI PXI-1044 18-Slot PXI Mainframe Chassis

Tektronix VX1405 5-Slot Mainframe