【2023 Upgrade IP68 Waterproof Junction Box 】IP68 Waterproof / Moisture-proof / Dust-proof. Silicon rings and clamping nuts provide the perfect waterproof and excellent sealing, which is safe for indoor and outdoor ethernet connection. The casing is made of nylon PA66 with high-temperature resistance( -20° C - 110° C). The sealing element is Silicone Ring with a perfect waterproof level | 【SUITABLE CABLE SIZE】Apply to cable size: Ø7.5-17.5mm. Cat6 has a transmission frequency bandwidth of 1~250MHz, and Cat6 network cable is used in Gigabit Ethernet, the transmission distance can reach 100m, and can support 1000Mbps transmission speed | 【EASY INSTALLATION 】Female to female mount, plug and play. It is miniaturization, and save installation space, RJ45 female to female coupler, It can convert existing Ethernet connectors into dustproof and waterproof, can be quickly connected paraded, and can work well | 【Extension of network cable】It is ideal for extending an ethernet connection by connecting 2 short network cables together. Using this RJ45 in-Line Coupler can save cost and time compared with replacing a network with insufficient length | 【SERVICE & GUARANTEE】We have confidence in our product. If you have any questions or concerns about our connector, just feel free to contact us for the first time. We will provide a 24-months guarantee, and we promise to reply to you within 12 hours with a satisfactory solution