Our new, refurbished and used Cisco PIX 515E versatile one-rack-unit design supports up to six 10/100 Fast Ethernet interface , making it an excellent choice for officees requiring a cost-effective , resilient security solution with “demilitarized zone” support. It also delivers up to 188 Mbps of firewall throughput with the capability to handle more than 130 , 000 simultaneous sessions.