Features: 100% brand new and high quality VGA resolution up to 1920x1440, extend the display device through the network cable No need for external power supply, plug and play. Suitable for monitoring video recorder to connect to the display This adapter can be converted to a VGA port. The VGA interface is used to connect to a computer host, monitoring hard disk video recorder or various displays. The network cable can be connected to the network cable ports of the two adapters. For this adapter, please use a Cat5e or Cat6 network cable.The network cable requires CAT6 or CAT7 pure copper network cable connection, transfer distance up 60 meters Package Includes: 2 PCS x VGA Extender Specifications: Item: VGA Extender Type: VGA Rj45 Cat6 Transmitter Resolution: 1920x1440 Range: approx 60M/197ft Quantity: 2Pcs/Set Color: Black Size: approx 4x5x2.5cm/1.97x1.57x0.98in note: The product does not have a signal amplification chip, which causes some devices to be incompatible and unable to display. It is necessary to replace the transmitter with power supply. Please allow 0-1mm error due to manual measurement, pls make sure you do not mind before you bid. Due to the difference between monitors, the picture may not reflect the actual color of the item. Thank you