Cisco WS-X4748-RJ45V+E Catalyst 4500E Series 48-Port 802.3at PoEP 10/100/1000 (RJ-45) Specifications: Catalyst 4500E Series 48-Port 802.3af PoE and 802.3at PoEP 10/100/1000 (RJ-45) 48 ports nonblocking 10/100/1000 module (RJ-45) Cisco IOS XE Release 3.1.0SG or later IEEE 802.3af/at and Cisco prestandard PoE, IEEE 802.3x flow control IEEE 802.1AE and Cisco TrustSec capability in hardware L2-4 Jumbo Frame support (up to 9216 bytes) Capable of up to 30 W of inline power per port on all ports simultaneously Enterprise and commercial: designed to power next-generation IP phones, wireless base stations, video cameras, and other PoE devices Campus and branch applications requiring enhanced performance for large file transfers and network backups.