Buying Guides

A listing like ‘RG59+2C 0.81mm CCA 128-strand shield + 0.65mm Power 305m’ tells you everything if you can read it. What each number means, and how to match a build to the job.

Cameras that drop at night, IR that flickers, connections that need re-crimping every few weeks: that is usually the cable, not the camera. The physics behind CCA failures on PoE runs, and what to install instead.

Same RJ45 connector, very different cable. Where Cat6 stops, when Cat6a pays for itself, and why Cat8 is almost never the answer outside a server rack.

Conduit or burial, UV or gel-filled, 18 or 24 inches deep? One afternoon of digging should buy you a decade of gigabit to the garage. Here is how to route it, rate it, and bury it so you never dig it up twice.

Most cheap “Cat6” on the market is copper-clad aluminum wearing a printed label. Five checks, from reading the jacket to weighing the box, expose a fake in ten minutes before you pay for it.

Two Cat6 305m quotes can differ by 40% and look identical. The gap is the conductor. Here is how CCA and solid bare copper differ on resistance, PoE, service life, and how to check what you received.

How to buy RG59+2C CCTV combo cable from a China manufacturer: bare copper vs CCA, 96 vs 128 strand shielding, round vs flat vs jelly-filled, packaging options and factory verification checklist.