Product Features Model: VHD-4X2AA3Ds (New Version) UPC: 609722357708 This HDMI 4x2 matrix with SPDIF optical output to support SURROUND SOUND home theater or Hi-Fi stereo audio with POWERED 3.5mm headset output for headset application & improved SPDIF stability. ViewHD HDMI Matrix 4x2 with full metal jacket in black; HDMI v1.3b Certified with 3D support. This is the ultimate combination of 1x2 Splitter and 4X1 Switches and more. ViewHD Newest Advanced HDMI True Matrix 4x2, Any Input to Any Output Audio Signal from Any Input can be obtained from SPDIF Digital Optical or Hi-Fi Stereo 3.5mm outputs @ Output A HDMI 1.3 Certified Support 1080P, 3D Video and Digital Surround Sound Setup SPDIF Output Supports Audio Up To Dolby Digital / DTS 5.1CH and Dolby Digital Plus; SPDIF Does NOT Support PCM 5.1CH and Beyond Full Metal Compact Jacket, Durable Construction (Not cheap plastic package) New Remote Control Unit (sharing with the Prosumer 4x2 unit) with Improved Flexibility to support Audio EDID modification. With 2 CH Stereo / 5.1CH Surround Sound EDID Manipulation Feature to support surround receiver application. (The power button is good ONLY for the Prosumer unit.) 3.5mm Headphone Jack Audio output added an amplifier to provide much stronger volume SPDIF Firmware has been updated to provide better and smoother performance HDMI v1.3; HDCP v1.2 Support output cable distance up to 25m HDMI AWG24 Include remote control, manual and DC5V2A universal UL grade power adapter 100-240V with US plug Weight:325g; Size: 13.4cm x 9cm x 2.2cm Application Note: The SPDIF optical audio output works in either 5.1CH surround or 2CH stereo mode; 3.5mm audio jack works only if HDMI incoming audio is 2CH stereo. 30 Day No Restocking Fee Return Policy & ViewHD One Year Warranty