The IEEE 802.3at standard provides up to 34.2 W of DC power to each device (25.5 W is assured to be available at the powered device).
IEEE 802.3at use Category 5 (Cat 5) cabling only (IEEE 802.3af supports Category 3 (Cat 3) and Cat 5). PoE Plus requires Cat 5 (8-wire) instead of
assured