Spirent SPT-N4U-220 2-Slot Chassis Base Model CHS-N4U REV. A3 SPT N4UCondition: Used The chassis has been tested and is fully operational, it is in good condition, please see below information extracted from the device re specifications and licences. This listing is for the mainframe only, should you require 1 10 40 100G modules, please check our shop, these are sold separately. Licences (refer to image 2): RFC 2544 with VLAN network device benchmark test pack Spirent SW update entitlement Packet generator and analyzer