Category 5 cable, commonly known as Cat-5, is an unshielded twisted pair type cable designed for high signal integrity. CAT-5e is an improved version that supports higher data rates than CAT5 cable, but less than CAT-6A cable.
CAT-5 Shielded cable includes a foil shield for better protection from radio-frequency interference (RFI), but the shield does not improve performance.

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