These are trash. For some reason the black ones have difficulty making a connection on pin 2. I’ve had 3 of 10 fail on me. Unless you really want black go with the other colours, like blue.

Reply by our customer service

Dear customer ,thanks for your kind reviews .Any quality issue ,could you contact our customer service for help ?You could reach them by calling 1-866-979-7463 or sending online live chat (from Monday to Friday )or sending an email inquiry to us (any time ). We are more than happy to help you here .Best regards

These are pretty flimsy. Bought them because I wanted black keystones for my patch panel but the quality isn’t great. The connection seats are really flimsy and the connection blades sometimes don’t grab onto the wire and seat it properly.

Reply by our customer service

Dear customer ,thanks for your kind reviews .Any quality issue ,could you contact our customer service for help ?You could reach them by calling 1-866-979-7463 or sending online live chat (from Monday to Friday )or sending an email inquiry to us (any time ). We are more than happy to help you here .Best regards

I could only get 100 mpbs per second with it I can get up to 300 mpbs per second normal , had to go another way .

Reply by our customer service

Dear customer ,thanks for your kind reviews .Any quality issue ,could you contact our customer service for help ?You could reach them by calling 1-866-979-7463 or sending online live chat (from Monday to Friday )or sending an email inquiry to us (any time ). We are more than happy to help you here .Best regards