This is a brand new in box Motorola EQ000103A02 All-Band Antenna Multiplexer kit (H1919A). These are used to feed three single-band radios to a single multi-band antenna. There is additional information on the Motorola site. According to their product page, this unit is compatible with the following series radios. Please validate compatibility PRIOR to purchasing!
The unit comes new in box with factory test chart results and 4 interconnect cables. (3) Motorola CB000091A03 QMA to Mini-UHF Adapter Cables.
(1) Motorola CB000091A02 QMA to QMA Cable.