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Green circuit board with silver RJ45 port and metal bracket

LORDWORLD

LORDWORLD 2.5Gbps PCIe 1x RJ45 Network Adapter RTL8125B

SKU CH-Y7WD-7ZSBM

Adds 2.5 Gbps wired Ethernet via a PCIe x1 slot with Realtek RTL8125B chip, low-profile bracket and auto-negotiation down to 10 Mbps

  • Fits x1, x4, x8 and x16 PCIe slots for broad motherboard compatibility
  • Includes low-profile and standard brackets for flexible case installation
  • Realtek RTL8125B chip delivers up to 2.5 Gbps with auto-negotiation down to 10 Mbps
  • EMI shielding and efficient heat dissipation maintain stable network transmission
  • Supports Windows 11, Windows 10 and Linux with PXE, VLAN and IEEE 802.3bz standards

2.5Gbps PCIe Network Adapter

The LORDWORLD adapter adds a 2.5Gbps Ethernet port to any desktop with a free PCI Express x1, x4, x8 or x16 slot. It uses the Realtek RTL8125B controller and auto-negotiates down to 1Gbps, 100Mbps or 10Mbps for broad compatibility with existing switches and routers.

Low-profile and standard brackets included

Both a low-profile bracket and a full-height bracket are supplied so the card fits compact or full-size chassis without modification. The design minimises electromagnetic interference and dissipates heat efficiently, while the RJ45 port accepts Cat5e or better UTP cable runs up to 100 metres.

Upgrade from 1Gbps onboard LAN

This card replaces a motherboard's built-in gigabit port when 2.5Gbps throughput is needed for large file transfers, HD streaming or low-latency gaming. It supports PXE boot, IEEE 802.1Q VLAN tagging, IEEE 802.3bz 2.5GBASE-T and full-duplex flow control. Buyers whose network infrastructure remains at 1Gbps will not see a speed increase.

Highlights

  • Fits x1, x4, x8 and x16 PCIe slots for broad motherboard compatibility
  • Includes low-profile and standard brackets for flexible case installation
  • Realtek RTL8125B chip delivers up to 2.5 Gbps with auto-negotiation down to 10 Mbps
  • EMI shielding and efficient heat dissipation maintain stable network transmission
  • Supports Windows 11, Windows 10 and Linux with PXE, VLAN and IEEE 802.3bz standards

Specifications

BrandLORDWORLD

Questions about this item

What speed ceiling appears first when the RTL8125B runs flat out?

The controller tops out at 2.5 Gbps, so that is the first throughput limit you will hit under sustained load.

How much heat or noise does the card produce during all-day operation?

A passive heatsink handles cooling with no fan, so the adapter adds no audible noise and stays within safe temperatures under continuous use.

Which slot and cable must already be in the desktop for this adapter to work?

You need a free PCIe x1, x4, x8 or x16 slot and a Cat5e or better UTP patch cable up to 100 m.

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