A CAT5 patch cable refers to an Ethernet cable that meets the CAT5 standard for transmitting data within a local area network (LAN). These cables are commonly used for connecting devices like computers, routers, switches, and other network equipment.
The "0.5M" in "CAT5 patch cable 0.5M" indicates that the cable is half a meter in length. This length is suitable for connecting devices that are very close to each other within a network setup, such as connecting a computer to a nearby switch or router on a desk.
If you have any more questions about CAT5 cables or networking in general, feel free to ask!