. The HP E5400 zl Switch Series consists of advanced intelligent switches in the HP E-Series product-line. The E5400 zl series includes 6-slot and 12-slot chassis and associated zl modules and bundles. The foundation for all of these switches is a purpose-built programmable ProVision ASIC that allows the most demanding networking features such as quality of service (QoS) and security to be implemented in a scalable yet granular fashion. With 10/100 Gigabit Ethernet and 10 Gigabit Ethernet interfaces choice of PoE+ and; Non-PoE integrated layer 3 features and HP allianceONE Solutions the E5400 zl switches offer excellent investment protection flexibility and scalability as well as ease of deployment operation and maintenance..