Model: TC510N2-L4KProduct Features2 channel HDMIResolution up to 3840×2160@30/25fpssoftware compression,Website:http://www.tchdvideos.com, Real-time mode,H.264 High Profile supported.SDK: VC++/.NET/VB4K HDMI Product Series Hardware SpecificationModel4K HDMIMax. FPS1ch 30fps @ 38402160p120fps @ 19201080pRecordingSoftware Compression, Real-Time ModeModeDimension140.00 x 68.91 (mm)InterfacePCIe x4Video Input2 × HDMIDisplayYUY2Video Format3840×2160@30/25fps1920×1080p@60/50/30/25/24fps1920×1080i@60/50fps1280×720p@60/50fpsDisplay1280×1024p@60fpsVideo1280×960p@60fpsResolution1024×768p@60fps800×600p@60fps720×576p@50fps720×480p@60fps640×480p@60fpsRecordingH.264 (Software Compression)Video Format3840×2160@30/25fps1920×1080p@60/50/30/25/24fps1920×1080i@60/50fps1280×720p@60/50fpsRecording1280×1024p@60fpsVideo1280×960p@60fpsResolution1024×768p@60fps800×600p@60fps720×576p@50fps720×480p@60fps640×480p@60fpsAudio InputHDMI Embedded AudioAudio FormatStereo / 16-bit / 32000 ~ 48000HzWatchDog✓Multiple Cards∞SDKVC++ / .NET / VBSystem RequirementOS SupportWindows XP / Vista / Windows 7 / Windows 8( 32-bit and 64-bit )