ATEN VE-172R A/V Over Cat 5 Receiver is compatible with ATEN MDS Standard Plus Solution (VS-1204T/VS-1208T, VE-170T/VE-170R/VE-170RQ). It can cascade up to 10 levels make long distance transmissions up to 150m. Compatible Transmitter Units: VE-170T A/V Over Cat 5 Transmitter VS-1204T A/V Over Cat 5 Transmitter VS-1208T A/V Over Cat 5 Transmitter Compatible Receiver Units: VE-172R A/V Over Cat 5 Receiver with Cascade VE-170R A/V Over Cat 5 Receiver VE-170RQ A/V Over Cat 5 Receiver with Deskew