The adapter is advertised to be 10/100/1000 Mbps, but
only works at 100 Mbps with r8169 driver (as of December 2023)!
As advertised on the box, this no-name adapter uses the
Realtek RTL8111C chipset.
lspci
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
lspci -v
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
Subsystem: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller
Flags: bus master, fast devsel, latency 0, IRQ 19, IOMMU group 10
I/O ports at 3000 [size=256]
Memory at b4200000 (64-bit, non-prefetchable) [size=4K]
Memory at b2100000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable+ Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 1c-01-00-00-36-4c-e0-00
Kernel driver in use: r8169
Kernel modules: r8169
lspci -nnk
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
Subsystem: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:0123]
Kernel driver in use: r8169
Kernel modules: r8169
lshw
*-network
description: Ethernet interface
product: RTL810xE PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 05
serial: xx:xx:xx:xx:xx:xx
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=6.1.0-15-amd64 duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=x.x.x.x latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:18 ioport:4000(size=256) memory:b4300000-b4300fff memory:b2200000-b2203fff
Modell: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)(Modell-ID: 2358)
