IBM - 00AG521 - IBM Intel I350-T4 4xGbe BaseT Ethernet Adapter

IBM 00AG521 Intel I350-T4 4x1GbE Base-T Ethernet Adapter

The IBM 00AG521 is an IBM-branded Intel I350-T4 Ethernet adapter that adds four 1GbE Base-T (RJ45) copper ports via a PCI Express NIC. It’s a practical option when you need additional server LAN connectivity, dedicated management interfaces, or separate VLANs for backup and storage traffic without changing your switching design.

Designed for compatible IBM System x and Lenovo ThinkSystem server platforms, this adapter is commonly used in virtualisation hosts and multi-NIC server builds where port density and driver maturity matter. For standardising spares across fleets, align it with other IBM components, and pair server uplinks with your existing SWITCH infrastructure for consistent copper Gigabit connectivity.

Key Features

Key technical characteristics of the IBM 00AG521 for enterprise server networking and lifecycle maintenance:

• 4x 1GbE Base-T (RJ45) ports to add multiple copper Gigabit connections for server LAN, backup, or dedicated management networks.
• Intel I350-T4 controller architecture to support stable, widely adopted driver compatibility across common server operating systems and hypervisors.
• PCI Express host interface to integrate into standard server expansion slots for straightforward upgrades and replacements.
• Multi-port design to enable link redundancy and traffic separation across multiple physical interfaces for resilient server connectivity.
• Support for VLAN tagging (802.1Q) to segment traffic for production, storage, and management networks on shared switching infrastructure.
• QoS and traffic prioritisation features typical of enterprise NICs to help maintain predictable performance under mixed workloads.
• Hardware offload capabilities common to server-class NICs to reduce CPU overhead for network processing in virtualised hosts.
• Compatible with select IBM System x and Lenovo ThinkSystem server families (model-dependent), for example System x rack servers and ThinkSystem rack/tower platforms used in SMB and data center deployments.

Refurbished Quality and Warranty

This unit is refurbished hardware, cleaned and tested by technicians before entering stock to help reduce the risk of hardware defects. Refurbished network adapters are a reliable way to extend the lifecycle of existing server environments, reduce electronic waste, and control budget compared to buying new—especially when maintaining consistent configurations across multiple hosts.

All standard refurbished hardware from Direct Hardware Supply includes a one-year warranty from the date of purchase (batteries, tape drives and tape libraries include a three-month warranty). Extended warranty options are available on request, and we ship worldwide from Denmark. To complete a consistent spare-parts strategy, consider related categories such as PCI CARD and NETWORK MODULE where relevant for your server and network expansion plans.