ACCL 1000ft Plenum Cat5e UTP Cable, Solid, CMP rated, 24 AWG, Pullbox, Blue Pack:1 they are most likely low-quality

they are most likely low-quality cables manufactured at the lowest possible cost

And if they came as freebies

and other power limited applications

Our gray bulk 1000 foot stranded Cat5e Ethernet cable comes in an easy to use pull box and is ideal for the person looking to make a variety of patch cables over a larger job or for one looking to be prepared to handle unexpected situations on the network infrastructure

Eliminate messy cable tangles by using this hook and loop cable tie roll to organize them

ACCL 1000ft Plenum Cat5e UTP Cable, Solid, CMP rated, 24 AWG, Pullbox, Blue Pack:1 they are most likely low-qualityThis Blue Bulk CAT5E is offered in 1000 foot pull boxes. It is unshielded twisted pair (UTP) that is plenum rated (CMP). Each of the wires in the cable is solid 24AWG (American Wire Gauge) pure copper.