Just cut the ends off and put regular RJ45's on them. Like the ones below. You will need a crimper but they're cheap.
https://www.amazon.com/CableCreation-100-PACK-Connector-Connectors-Transparent/dp/B01K9Z4FT2
https://www.amazon.com/Ethernet-Crimping-Crimper-Stripper-Infographics/dp/B06XPDDTBX
https://www.amazon.com/CableCreation-100-PACK-Connector-Connectors-Transparent/dp/B01K9Z4FT2
https://www.amazon.com/Ethernet-Crimping-Crimper-Stripper-Infographics/dp/B06XPDDTBX