Polycom HDX 4000 Keypad Control Conferencing Unit 2201-61725-001

Polycom HDX 4000 VGC Video Conference Keypad Adapter 2201-61725-001

Polycom HDX 6000 Conference System Base unit only

Polycom HDX-4000 Video Conferencing System HUB

Polycom HDX 9000 Series Video Conferencing Codec (Rackmount Unit)

Polycom HDX 9000 Series Video Conferencing System – Rackmount – Unit Only

Polycom HDX 7000 HD NTSC Video Conferencing Unit 2201-26773-001 /W Remote

Polycom 2201-09750-002 HDX External Unit Conferencing Microphone Unit Only