The minimum cable grade acceptable for new data installations is category___.

• A. Category 5e
• B. Category 6
• C. Category 5
• D. Category 6a

Answer: (B)

Minimum data cabling for new installations should be Category 6. This level provides the higher bandwidth and better crosstalk control needed for modern networks, while remaining cost-effective for new builds. Category 6 cables handle speeds well beyond older types, with up to about 250 MHz performance, tighter twists, and improved insulation that reduce interference between pairs. That makes them reliable for current Gigabit Ethernet and capable of supporting higher speeds (like 10 Gigabit Ethernet) over practical distances, which is why it’s the standard baseline for new work. Category 5 and Category 5e are older and offer less headroom for interference and future speeds, while Category 6a goes further still with even higher performance and is typically chosen for demanding deployments or longer 10G runs, but it isn’t the minimum.