What is the Cisco PIX-535?
The Cisco PIX-535 is a network firewall appliance, listed by the manufacturer as "VPN FIREWALL CHAS 9SLT". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The Cisco PIX-535 is a network firewall appliance — originally specified as "VPN FIREWALL CHAS 9SLT" — available refurbished or as surplus stock via Circular Telecom, supporting network operators sourcing decommissioned and reclaimed equipment.
Common Questions
The Cisco PIX-535 is a network firewall appliance, listed by the manufacturer as "VPN FIREWALL CHAS 9SLT". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Cisco network equipment, including parts such as the PIX-535, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue