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03X4476 — Network Technical Data

LENOVO · NIC ADAPTER
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - Option. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
03X4476
SPECIFICATIONS
Part Number03X4476
ManufacturerLENOVO
Interface1GbE
Capacity1GB
BROWSE LENOVO MACHINES
ThinkSystem SR650 V1 ThinkSystem SR650 V2 ThinkSystem SR630 V1 ThinkSystem SR630 V2 System x3650 M5 System x3550 M5 ThinkServer RD550 System x IBM System x3650 M4 ThinkServer RD650 SD530 System x3500 M4 ThinkServer RD350
All Lenovo machines and parts
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM 1GbE 1GbE 1GbE 1GbE LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 4-PORT 10GbE | 1GbE | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN 03X4476 MFR LENOVO IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 In
KEY FEATURES
•
1GbE Interface
•
1GB Capacity
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
SUBSTITUTES & CROSS-REFERENCES 2
4XC0F28731CompatiblePARTNER
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - Option
compatible
03T8760CompatiblePARTNER
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - FRU
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 2
03T8760SUBSTITUTE
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - FRU
LENOVO
4XC0F28731SUBSTITUTE
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - FRU
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 03X4476?
03X4476 is a IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - Option manufactured by LENOVO.
What parts can replace 03X4476?
There are 2 known substitutes for 03X4476: 4XC0F28731, 03T8760. Substitute compatibility should be verified for your specific system.
Is 03X4476 still available?
03X4476 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.