Flat Ethernet cables look great — but there’s a catch

Flat Ethernet cables are popular for their slim profile and ability to blend into home environments, but they come with real trade-offs. Unlike standard round UTP cables, flat cables lack proper conductor twisting, making them prone to crosstalk and signal degradation — especially at higher speeds like 5 or 10 Gbps. They're also more fragile, sensitive to bending, and can't be cut to custom lengths. The verdict: flat cables are acceptable for standard gigabit use in finished rooms where aesthetics matter, but round cables remain the better technical choice for reliable, high-performance networking.