Description Brand Name: UGREEN Origin: CN(Origin) Certification: CE Certification: FCC Certification: RoHS Model Number: 40254/50812/80190 Monitor Connections: 2 Ports Interface Type: USB Resolution: 1920 x 1440 Package: Yes Computer Connections: 1 Ports Feature 1: VGA splitter Feature 2: with VGA cable Feature 3: Splitter VGA Feature 4: Splitter cable Feature 5: Monitor splitter Feature 6: 1 input 2 output Feature 7: home theater amplifier Input Voltage: 5V There are 2 models optional, different model has different interface and packaging, please choose suitable model before purchase： (1).1 IN 2 OUT model: 2 output ports  (2).1 IN 4 OUT model: 4 output ports(Come with EU adapter) NOTES: 1. The VGA splitter ONLY duplicates laptop/computer screen to displays/monitors/HDTVs. (Mirror Mode only, but NOT support Extend Mode) 2. It can only transfer signal from one source device (Laptop/Computer) to two displays/monitors/HDTVs. Intelligently Identify Resolution: VGA OUT 1 supports DDC, your computer will identify resolution of monitor and adjust to a suitable value which provides you an excellent visual experience.     Note    : VGA OUT 2 does not have this function. Durable Construcion: thick nickel-plated connector withstands frenquently plugging and unplugging and anti-corrosion; ABS case has a great heat resistance during working status Widely CompatibilityDuplicate mode,enjoy your large displayMake a perfect demonstration easilyCapture every detailBuilt-in signal strengthen moduleAutomatically adjust to the best resolutionPlug and playGreat heat resistance during working statusThick Nickel-plated connectorProduct specification Package