8K HDMI Coupler Connect two HDMI Cables for long distance transmision. Support 8K@60Hz / 4K@120Hz, 7680x4320@60Hz, 2K@240Hz, 1080P@240Hz. DT, Dolby sound, and HDR | Gold-Plated Contacts ensure stable signal transmission; Fully shielded aluminum shell can avoid signal interference and wear resistance | The HDMI Coupler Female to Female Adapter can handle over 10,000 pluggings and unpluggings. | This HDMI to HDMI Extender is Suitable for all devices with HDMI Male head, such as TV Box, PC, Laptop, HDTV, Monitor, Projector and so on | Package Include: 6 x HDMI Female to Female Adapter. Life time warranty-You can get a full refund or replacement for free if there is a quality problem.

BNC Connectors is used for application for cctv security camera system, DVR and so on | BNC Female to Female adapter is used to extend cable with bnc male end, instead of buying a longer cable. | BNC Female coupler is built with high quality material, nickel plated body and gold-plated contacts for enhanced corrosion resistance | BNC barrel connector: Plug and play, easy to install, no loss in video quality. | Package contains 10pcs bnc female to bnc female connectors

These RS232 Serial Cable Adapter can be used to connect 9 pin serial Cable/ device with male or female end. | This DB9 Adapter is built with precision-made nickle plated contacts connector, which provide corrosion protection, low loss, and long life span. | The Mini Gender Changer is simple to use, plug and play. Solder free, no need to install any driver. | The Female to Female and Male to Male Serial Adapter is widely used for PC, Modem,Printer,Scanner,Cashier,POS Machine and more. | Package Include: 4-Pack Male to Male and 4-Pack Female to Female RS232 Serial Adapter (total 8pcs 9Pin RS232 Serial Cable Connector)

Connect two HDMI Cables for long distance transmision. Support 8K@60Hz / 4K@120Hz, 7680x4320@60Hz, 2K@240Hz, 1080P@240Hz. DT, Dolby sound, and HDR | Gold-Plated Contacts ensure stable signal transmission; Fully shielded aluminum shell can avoid signal interference and wear resistance | The HDMI Coupler can handle over 10,000 pluggings and unpluggings. | Suitable for all devices with HDMI Male head, such as TV Box, PC, Laptop, HDTV, Monitor, Projector and so on | Package Include: 1 x HDMI Female to Female Adapter. Life time warranty-You can get a full refund or replacement for free if there is a quality problem.