Extend and distribute 4K HDMI signal with USB, bi-directional RS232/IR(Infrared), and analog audio signals over LAN. Supports resolutions up to 4K 30Hz 4:4:4. HDCP 2.2 compliant. Transmission range up to 150M over CAT5e/CAT6. Support SFP optical transceiver, single mode transmission distance up to 60KM. Support Windows based management software, using PC for easy setting input/output link. Support Android/iOS APP for channel select and management. Support IR(Infrared) remote control or front panel button for channel select and management. Support up to 8x16 video wall. Support output resolution up/down scale: 2160p 30Hz input to 1080p 60Hz output. Supports full duplex Bi-Directional RS232 communication (115200 MAX) by control software on a PC, or other automated control system to control devices attached to the extenders. Built in RS232 distribution function, to send RS232 signal from one TX to multiple RX. RS232 port support external Keypad/Console control. (Custom made available) Support Dolby TrueHD®, and DTS-HD Master™ ,LPCM audio up to 7.1 channels 192KHz Built in Bi-Directional analog audio transmission (only in unicast mode). Built in Bi-Directional IR(Infrared) extension. HKM02BT-4K and HKM02BPT-4K Transmitter unit built in HDMI local loop output. HKM02BR-4K and HKM02BPR-4K Receiver unit with 4 ports USB devices (2 port USB 1.1 front & 2 Port USB 2.0 rear), to extend USB peripheral devices, such as flash disk, hard disk, keyboard, mouse, etc. HKM02BPT-4K and HKM02BPR-4K support both 802.3af and power adaptor as power input. Use IGMP and Jumbo frame protocol Gigabit Switch Hub to do HD signal distribution and transmission. Support point to point and multiple source devices to multi-display connections via Gigabit network switch with Unicast or Multicast mode. Support total of transmitter unit up to 1000 pieces, receiver unit over 60000 pieces based on the number of ports on your network switch. Perfect for large scale remote HD content access and security monitoring systems, digital signage applications. Option Model: 1U 19” Rack Mounting Panel TPN002BT: to fit 2 pcs HKM02BT-4K. TPN003BT: to fit 3 pcs of HKM02BT.