The 2 x 4 HDMI Switcher/Splitter can connect two HD signal sources to four HD display terminals; It allows two hd signal sources to be split to four HD displayers or projectors easily. And it can amplify the HDMI signal at the same time. The two signal sources can be switched freely.The 2 x 4 HDMI switch / splitter can support all HD multi-channel video formats including 720p 1080i 1080p. It also supports the 3.5 mm headphone audio output and SPDIF audio output. FEATURES: 1.Support HDMI1.4a 2.Support 3D 3.Support highest video resolution 1080p/60Hz 4.Support 2.25Gbps data rate and tmds clock up to 225MHz 5.Support 8/10/12bit deep color 6.Support input up to 15 metres AWG26 HDMI standard cable length output up to 25metres AWG26 cable length 7.Support single high definition display and multiple output HD signal sources such as DVD PlayersA/V receivers and Set Top Boxes. 8.Need DC5V2A power supply 9.Support 3.5 mm audio output and optical output 10.Support 5.1 audio channel SPECIFICATIONS: HDMI version ………………………...… HDMI 1.4a HDMI resolution …………………….…....24/50/60fs/1080p/1080i/720p/576p/576i/480p/480i Support video format ……………............8/10/12 bit deep color Support audio format………….…….DTS-HD/Dolby-trueHD/LPCM7.1/DTS/Dolby-AC3/DSD Max bandwidth………………………………225MHz Max baud rate……………….…….…………2.25Gbps Input cable distance..…... ………………… ≤15m AWG26 HDMI standard cable Output cable distance……………………….≤25m AWG26 HDMI standard cable Max working current…………………………500mA Power adapter format..........................Input: AC (50Hz 60Hz) 100~-240V; Output: DC5V/2A Operating Temperature range……..……… (-15 to +55'C)