IBM 45D1083 server / storage / networking hardware Server Hardware / Parts

The IBM 45D1083 is an OSA-Express3 2-port 1000BASE-T Ethernet module, IBM feature code 3369, built for the zEnterprise 114/2098 I/O cage (documented as 2098-3369 in vendor parts listings). It provides two copper Gigabit Ethernet ports and installs directly into the mainframe’s I/O drawer, acting as the Open Systems Adapter that carries TCP/IP network traffic between the central processor complex and the customer’s Ethernet infrastructure; OSA-Express is the strategic, IBM-designed alternative to third-party NICs on System z platforms because it integrates with the machine’s LPAR and VLAN architecture at the hardware level. This exact feature code and generation matters for compatibility, since OSA features are not freely interchangeable across zEnterprise generations. Genuine replacement units of this type are a routine requirement when expanding network capacity on an existing zEnterprise 114 or restoring a failed OSA port. Tech-Star (UK-based, shipped worldwide) supplies IBM mainframe network hardware for ongoing System z maintenance.