1. Product name: DVI female to female coupler. 2. DVI coupler connector, can connect 2 short DVI cables together to extend the connection. 3. Dual-channel connector, compatible with 24+1 and 24+5 DVI cables in series. 4. Plug and play, no driver required. 5.2K video resolution up to 2560x1600, including HD 1080p, 800x600, 1024x768, 1280x1024, 1600x1200, 1680x1050; supports 144Hz DVI-D dual link cable. 6. Sturdy shell and gold-plated connectors, with easy-to-grip tread and DVI-I thumbscrews for firm connection. 7. Widely used in various occasions, such as homes, offices, hotels, etc. 8. Packing quantity: 2xDVI female to female coupler