Ethernet cables mainly differ by speed, shielding, and bandwidth capability. The higher the category, the faster and more reliable the connection, especially over longer distances.
Cat5e
- Up to 1 Gbps
- Good for basic home or small office use
- Most common and affordable
- Works up to 100 meters
Best for: general internet, cameras, basic networking
Cat6
- Up to 10 Gbps (short distances ~55m)
- Better internal twisting = less interference
- Improved performance over Cat5e
Best for: faster networks, business use, gaming setups
Cat6a
- Full 10 Gbps up to 100 meters
- Thicker cable with better shielding
- Handles interference much better than Cat6
Best for: professional installs, high-speed networks, long runs
Cat7 / Cat8 (specialized)
- Very high shielding and bandwidth
- Cat8 supports extremely high speeds but short distance (~30m)
- More rigid and harder to install
Best for: data centers, specialized high-speed environments
Shielded vs Unshielded (important difference)
- UTP (Unshielded): standard, flexible, cheaper
- STP (Shielded): better against interference, used near power lines or RF noise