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Model: LE8127T1(X4)
Do I need to install a driver?
Windows 10/11 and Linux kernel 6.16+ run out of the box; older systems install the Realtek driver from our download page.
Does it work on macOS?
macOS has no official Realtek driver; community drivers exist but are unsupported. Use an Intel-based card on Macs.
Why is my link not running at 10G?
Both ends need 10G-capable ports, Cat6/Cat6a cable, and an x4 or larger slot; PCIe 3.0 x2 carries full line rate.
Does it fit an x1 slot?
No. The card uses a x4-size edge connector and needs a x4, x8 or x16 open slot. For x1 slots pick the LE8127T1(X1).
Is it good for a homelab server and remote wake-up?
Yes. Wake-on-LAN plus UEFI and Legacy PXE boot suit Proxmox, NAS and remote management; not designed for SR-IOV/DPDK workloads.
1Gbps Gigabit Ethernet
Aluminum Heatsink
Dual Brackets Included
2.5Gbps Multi-Gig Ethernet
Backward Compatible: 2.5G / 1G / 100M
PCIe x1, Low-Profile Bracket Included
10Gbps Single-Port RJ45
PCIe 4.0 x1
Wake-on-LAN / Jumbo Frame Support
NIC with Realtek Chip
10/25/100G NIC with Intel Chip
RDMA NIC with ConnectX Chip
NIC with Broadcom Chip
OCP 3.0 NIC
PoE+ Network Card
Model: LE8127T1(X4)
| Controller | Realtek RTL8127 |
|---|---|
| Host Bus Interface | PCIe 3.0 x2 (standard x4 physical slot; fits x4/x8/x16 slots) |
| Transfer Speed | 10G/5G/2.5G/1G/100MbE auto-negotiation |
| Network Standards | IEEE 802.3an 10GBASE-T; NBASE-T 2.5G/5G; 1000BASE-T; 100BASE-TX |
| Port | 1 x RJ45 (copper, 10GBASE-T) |
| Jumbo Frame | Supported via driver settings |
| Wake-on-LAN (WoL) | Supported (enable in BIOS/UEFI) |
| PXE Boot | UEFI Mode and Legacy BIOS Mode |
| Flow Control | Supported via driver settings |
| Heatsink | Passive aluminum heatsink over controller (fanless) |
| Brackets | Full-height (preinstalled) + low-profile (in box) |
| Power | Under 3 W typical board draw, bus-powered, no external power connector |
| LED Indicators | Link / Activity |
| OS Support | Windows 10/11; Linux kernel 6.16+ (in-tree r8169), older kernels via Realtek r8127 driver; Ubuntu, CentOS; ESXi (vendor-listed). macOS: no official driver |
| In the Box | LE8127T1(X4) network card x1, low-profile bracket x1 |
Do I need to install a driver?
Windows 10/11 and Linux kernel 6.16+ run out of the box; older systems install the Realtek driver from our download page.
Does it work on macOS?
macOS has no official Realtek driver; community drivers exist but are unsupported. Use an Intel-based card on Macs.
Why is my link not running at 10G?
Both ends need 10G-capable ports, Cat6/Cat6a cable, and an x4 or larger slot; PCIe 3.0 x2 carries full line rate.
Does it fit an x1 slot?
No. The card uses a x4-size edge connector and needs a x4, x8 or x16 open slot. For x1 slots pick the LE8127T1(X1).
Is it good for a homelab server and remote wake-up?
Yes. Wake-on-LAN plus UEFI and Legacy PXE boot suit Proxmox, NAS and remote management; not designed for SR-IOV/DPDK workloads.
1Gbps Gigabit Ethernet
Aluminum Heatsink
Dual Brackets Included
2.5Gbps Multi-Gig Ethernet
Backward Compatible: 2.5G / 1G / 100M
PCIe x1, Low-Profile Bracket Included
10Gbps Single-Port RJ45
PCIe 4.0 x1
Wake-on-LAN / Jumbo Frame Support
NIC with Realtek Chip
10/25/100G NIC with Intel Chip
RDMA NIC with ConnectX Chip
NIC with Broadcom Chip
OCP 3.0 NIC
PoE+ Network Card