Though we’ve never used their cables ... the Ethernet cable specification is policed via the honor system, allowing manufacturers to be fairly brazen about what they label as Cat 6.
Cat5 and Cat6 Ethernet cables are both popular options for wired networking, but there are some important differences between them and reasons why you're probably better off picking the newer Cat6 ...
But choosing between Ethernet cable options is complex, and making the right selection starts with understanding the distinctions between the latest categories of cabling: CAT 6, CAT 7 and CAT 8.