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RTL8139D 8139D 10/100M RJ45 Ethernet Network LAN PCI Wired Network Card Adapter 10/100Mbps NIC
Jeirdus

RTL8139D 8139D 10/100M RJ45 Ethernet Network LAN PCI Wired Network Card Adapter 10/100Mbps NIC

Bottom line: The RTL8139D 8139D 10/100M RJ45 Ethernet Network LAN PCI Wired Network: Widely-supported RTL8139D chipset with native Win98/95/NT/DOS drivers; main trade-off: capped at 100Mbps, no gigabit for large modern file transfers.

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Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Widely-supported RTL8139D chipset with native Win98/95/NT/DOS drivers
  • ✓ True PCI 2.2 card (not PCIe) for period-correct vintage motherboards
  • ✓ 10/100Mbps RJ45 with auto-negotiation, full/half duplex auto-adjust
  • ✓ BOOTROM slot supports NetWare RPL and PXE diskless remote boot

Cons

  • ✗ Capped at 100Mbps, no gigabit for large modern file transfers
  • ✗ PCI slot only, will not fit PCIe-only modern boards
  • ✗ Generic Jeirdus branding with minimal printed documentation
  • ✗ Single RJ45 port, no dual-NIC or fiber option

SpecPicks Verdict

SpecPicks scored RTL8139D 8139D 10/100M RJ45 Ethernet Network LAN PCI Wired Network… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro networking cards category. Jeirdus's retro networking cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro networking cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Stable and reliable chipset RTL8139D,Fully comply with PCI 2.2 bus specification, please kind noted this is not a PCIE card
  • 1 RJ45 interface, support Auto-Negotiation technology, 10/100M and full / half duplex auto-adjust
  • Fully compatible with IEEE 802.3 10Base-T and IEEE 802.3u 100Base-TX standards
  • With BOOTROM slot, fully supports NetWare 3.x, 4.x RPL server, Microsoft Windows NT 4.x diskless Win98/Win95/DOS start on RPL and PXE Server
  • Supports remote boot workstation and ACPI power management modes,LED indicator and diagnostic software for simple troubleshooting

Full Specifications

BrandJeirdus
ColorRTL8139D
Connection TypeWired
Compatible DevicesDesktop
Data Link ProtocolIEEE 802.3
Data Transfer Rate100 megabits_per_second
Hardware InterfacePCI, PCIE x 1

Ready to buy?

RTL8139D 8139D 10/100M RJ45 Ethernet Network LAN PCI Wired Network Card Adapter 10/100Mbps NIC is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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