PCI\VEN_8086&DEV_1521

I350 Gigabit Network Connection driver

PCI\VEN_8086&DEV_1521 is the Intel Corporation I350 Gigabit Network Connection, an Ethernet device. Without it the wired port shows as an Ethernet Controller under Other devices and the cable does nothing. Get it from Windows Update or your PC maker first; the chip maker's own package is on intel.com.

Download from intel.comFull guide: The right Intel Ethernet driver

Device details

Hardware IDPCI\VEN_8086&DEV_1521
Device nameI350 Gigabit Network Connection
MakerIntel Corporation (PCI vendor ID 8086)
Device typeEthernet
Driver guideThe right Intel Ethernet driver
Latest official packageIntel Network Adapter Driver for Windows 11 (Wired_driver_31.3_x64.zip) 31.3, October 16, 2026
Known OEM variants66

PCs and boards that use this chip

Each line is a subsystem ID: the full hardware ID ends in SUBSYS_ plus these eight characters when the I350 Gigabit Network Connection is built into that maker's product.

Full hardware ID endingMakerProduct
SUBSYS_06021028DellGigabit 2P I350-t LOM
SUBSYS_06931028DellGigabit 2P I350-t LOM
SUBSYS_06E21028DellGigabit 2P I350-t LOM
SUBSYS_07571028DellGigabit I350-t LOM
SUBSYS_075A1028DellGigabit I350-t LOM
SUBSYS_1F601028DellGigabit 4P I350-t rNDC
SUBSYS_1F621028DellGigabit 4P X540/I350 rNDC
SUBSYS_1FA81028DellEthernet 10G 4P X550/I350 rNDC
SUBSYS_1FA91028DellEthernet 10G 4P X550 rNDC
SUBSYS_1FAA1028DellGigabit 4P X550/I350 rNDC
SUBSYS_FF9A1028DellGigabit 4P X710/I350 rNDC
SUBSYS_17D1103CHewlett-Packard CompanyEthernet 1Gb 4-port 366FLR Adapter
SUBSYS_2003103CHewlett-Packard CompanyEthernet 1Gb 2-port 367i Adapter
SUBSYS_2226103CHewlett-Packard CompanyEthernet 1Gb 1-port 364i Adapter
SUBSYS_337F103CHewlett-Packard CompanyEthernet 1Gb 2-port 361i Adapter
SUBSYS_3380103CHewlett-Packard CompanyEthernet 1Gb 4-port 366i Adapter
SUBSYS_339E103CHewlett-Packard CompanyEthernet 1Gb 2-port 361T Adapter
SUBSYS_8157103CHewlett-Packard CompanyEthernet 1Gb 4-port 366T Adapter
SUBSYS_7B16108EOracle/SUNQuad Port GbE PCIe 2.0 ExpressModule, UTP
SUBSYS_7B18108EOracle/SUNQuad Port GbE PCIe 2.0 Low Profile Adapter, UTP
SUBSYS_76481093National InstrumentsPCIe-8237R Ethernet Adapter
SUBSYS_76491093National InstrumentsPCIe-8236 Ethernet Adapter
SUBSYS_76B11093National InstrumentsPCIe-8237R-S Ethernet Adapter
SUBSYS_775B1093National InstrumentsPCIe-8237 Ethernet Adapter
SUBSYS_802A10A9Silicon Graphics Intl. Corp.UV2-BaseIO dual-port GbE
SUBSYS_023E1137Cisco Systems Inc1GigE I350 LOM
SUBSYS_000015D9Super Micro Computer IncAOC-SGP-i4
SUBSYS_065215D9Super Micro Computer IncDual Port i350 GbE MicroLP [AOC-CGP-i2]
SUBSYS_152115D9Super Micro Computer IncX10DRW-i
SUBSYS_107417AALenovoThinkServer I350-T4 AnyFabric
SUBSYS_400517AALenovoI350 Gigabit Network Connection
SUBSYS_0C0718D4CelesticaI350 1Gb 2-port RJ45 OCP Mezz Card MOP41-I-1GT2
SUBSYS_1005193DNew H3C Technologies Co., Ltd.360T-B
SUBSYS_1007193DNew H3C Technologies Co., Ltd.360T-L
SUBSYS_1080193DNew H3C Technologies Co., Ltd.NIC-ETH360T-3S-4P
SUBSYS_001D1BD4IEIT SYSTEMS Co., Ltd1G base-T QP EP014Ti1 Adapter
SUBSYS_00351BD4IEIT SYSTEMS Co., Ltd1G base-T QP EP014Ti1 Adapter
SUBSYS_00661BD4IEIT SYSTEMS Co., LtdF014I350
SUBSYS_008A1BD4IEIT SYSTEMS Co., LtdF012I350
SUBSYS_008D1BD4IEIT SYSTEMS Co., LtdENFI1100-T4

Showing 40 of 66 entries.

If your SUBSYS matches a laptop or board maker in this list, that maker's support page has the version tested for your model.

How to install the driver for I350 Gigabit Network Connection

  1. Confirm the ID. In Device Manager, right-click the device, open Properties, then Details, and pick Hardware Ids. The first line should start with PCI\VEN_8086&DEV_1521.
  2. Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Network drivers may appear here once another connection works, such as Wi-Fi or a phone hotspot.
  3. Check your PC maker. Enter your model or serial number on its support site and look under Networking or LAN.
  4. Use the chip maker's package. Intel Network Adapter Driver for Windows 11 (Wired_driver_31.3_x64.zip) on intel.com. Our the right intel ethernet driver guide explains which package fits.
  5. Restart and check. Plug in the cable and check that Windows shows a wired connection.

Other Intel ethernet IDs

Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.