19 pin USB 3.0 motherboard adapter offers a throughput of up to 4.8Gbps when used with a USB 3.0 host and device , which astounding the capability of USB 2.0 (480Mbps). USB 3.0 header to usb 2.0 adapter cable use molded-strain relief construction for flexible movement, durability, and fit. USB 3.0 to USB 2.0 motherboard adapter cable complies with fully rated cable specification using braid-and-foil shield protection. USB3.0 technology of USB 3.0 motherboard adapter is similar to PCI Express 2.0(5 Gbit/s) It uses 8 B10B encoding,linear feedback shift register (LFSR) scrambling for data, spread spect . Let your USB 3.0 motherboard adapter 19 pin device connected the USB 2.0 9 pin motherboard. Colour: black Material: PVC Size: length: about 10cm Package Contents: 2 * Motherboard USB conversion cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!