Sonicwall NSA 250M Secure Upgrade Plus 2 (01-SSC-4951) Distributed network security Application control and visualization WAN acceleration Gateway anti-malware and intrusion prevention Virtual private networking SonicWALL nsa 250m secure upgrade plus 2 - 5 x 10/100/1000base-t network lan - 1 x compact flash (cf) card SonicWALL nsa 250m secure upgrade plus 2 5 x 10/100/1000base-t network lan - 1 x compact flash (cf) card