Product Description
IBM EN0W PCIe2 2-port 10/1GbE BaseT RJ45 Adapter
The IBM EN0W PCIe2 2-port 10/1GbE BaseT RJ45 Adapter is a dual-port Ethernet host bus adapter providing 10 Gigabit and 1 Gigabit Ethernet connectivity via RJ45 copper ports. This PCIe Gen2 x8 adapter is designed for IBM Power Systems servers, delivering high-bandwidth, reliable network performance for AIX, IBM i, Linux, and VIOS environments in data center, virtualization, and enterprise networking applications.
Product Description
The IBM EN0W (feature code EN0W, CCIN 576F, part number typically 00Y3282 or related variants) is a PCIe Gen2 x8 dual-port 10/1GbE BaseT RJ45 adapter that occupies a single PCIe slot on the host server. It features two RJ45 copper ports supporting auto-negotiation for 10 Gbps (10GBASE-T) and 1 Gbps (1000BASE-T) Ethernet speeds over standard Cat6a/Cat7 cabling (up to 100 m for 10 GbE, 100 m for 1 GbE). The adapter uses Intel-based controllers (typically X540 or similar) with advanced offload features including TCP/UDP/IP checksum offload, large send offload (LSO), VLAN tagging, jumbo frames (up to 9K), and MSI-X interrupt handling. It supports full-duplex operation, link aggregation (IEEE 802.3ad LACP), and is qualified for high-throughput networking in Power7+, Power8, Power9, and select Power10 systems. The EN0W is ideal for legacy 10 GbE copper deployments, server consolidation, iSCSI storage, and general LAN connectivity where fiber is not required.
Features
- Dual RJ45 ports supporting 10 Gbps (10GBASE-T) and 1 Gbps (1000BASE-T) auto-negotiation.
- PCIe Gen2 x8 host interface (backward compatible with Gen1 slots at reduced bandwidth).
- Up to 100 m reach over Cat6a/Cat7 cabling for 10 GbE.
- TCP/UDP/IP checksum offload, large send offload (LSO), and receive side scaling (RSS).
- Support for jumbo frames (up to 9,600 bytes), VLAN tagging (IEEE 802.1Q), and link aggregation (LACP).
- MSI-X interrupt support for improved performance in virtualized environments.
- Wake-on-LAN (WoL) and PXE boot support.
- LED indicators for link/activity and speed per port.
- Hot-plug capable in supported systems.
Technical Specifications
- Feature Code: EN0W
- CCIN: 576F
- Part Number: Typically 00Y3282 (or related variants)
- Interface (Host): PCIe Gen2 x8 (backward compatible with Gen1)
- Interface (Network): 2 × RJ45 copper ports
- Data Rates: 10 Gbps (10GBASE-T) and 1 Gbps (1000BASE-T) auto-negotiation
- Form Factor: PCIe full-height, half-length card
- Controller: Intel X540 or equivalent
- Cabling: Cat6a/Cat7 UTP (up to 100 m for 10 GbE); Cat5e/Cat6 for 1 GbE
- Power Consumption: ~10–15 W typical
- Cooling: Passive heatsink; relies on server airflow
- Compatibility: Power7+ (with PCIe Gen2 slots), Power8, Power9, select Power10 models
Compatibility
The IBM EN0W PCIe2 2-port 10/1GbE BaseT RJ45 Adapter is compatible with:
- Power Systems Models:
- Power7+: 8202-E4B/C/D, 8205-E6B/C/D, 8231-E1C/D/E2B/C/D, 8233-E8B, 8236-E8C, 9117-MMB/MMC, 9179-MHB/MHC/MHD, and others
- Power8: S814 (8286-41A), S822/S824 (8284-22A), E870/E880 (9119-MME/MHE), and related models
- Power9: S914, S922, S924, E950/E980 (with PCIe Gen2/Gen3 slots)
- Power10: Select models with backward-compatible PCIe Gen2/Gen3 slots (reduced bandwidth vs. Gen4)
- Operating Systems: AIX 6.1+/7.1+, IBM i 7.1+, Linux (RHEL/SUSE/Ubuntu), VIOS
- Attachment: PCIe Gen2 x8 slot on host server (Gen1 fallback supported)
- Networking: Standard Ethernet switches (10GBASE-T or 1000BASE-T), iSCSI targets, and LAN infrastructure
- Limitations: Requires Cat6a/Cat7 cabling for full 10 GbE performance (Cat5e limits to 1 GbE); no fiber support; performance limited in Gen1 slots; not optimized for latest Gen4/Gen5 networking
Verify exact slot requirements, driver/firmware levels, and OS patch levels via IBM Sales Manual or resources for your specific Power Systems model.
Warranty
This product comes with a 60-day warranty covering parts and functionality.
