Features: You can easily connect two networking cable by using RJ45 pass-through header, not need recreating the crystal header, easy to operate, saving time and effort. High Compatibility The connector is compatibles many type of Ethernet cable , including Category 5 (Cat5), Category 6 (Cat6) and its shielded version, which is widely applicable. Signal Stability The shielded design effectively reduces external electromagnetic interferences, ensuring signal stability during data transmission and improving networking performances. Supports fast speed transmission Supports fast speed transmission, suitable for high-bandwidth applications such as video streaming and online gaming. Extension Connection Can be used to connect two networking cable together to flexibly extend the networking line, making it easy to wire in large space. Specifications: Item：RJ45 Coupler Ethernet Extender Type: Female to Female Size:about 43x23x25mm/1.69x0.9x0.98in Component: ABS Shell Interfaces: RJ45 8pin Genre：CAT6/CAT5 Use：Connecting multiple terminal CAT6/CAT5 networking cable Package Includes: 1PC RJ45 Coupler Ethernet Extender note: Due to the problemsof lighting effects, there will be tolerances in product, please understand. Please allow 0-1cm error due to manual measurement