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About This File

Key Features of the Driver

  • Supports all versions of Realtek's RTL8125 2.5GBit Ethernet Controllers found on recent boards.
  • Support for multisegment packets relieving the network stack of unnecessary copy operations when assembling packets for transmission.
  • No-copy receive and transmit. Only small packets are copied on reception because creating a copy is more efficient than allocating a new buffer. TCP, UDP and IPv4 checksum offload (receive and transmit).
  • TCP segmentation offload over IPv4 and IPv6.
  • Support for TCP/IPv4, UDP/IPv4, TCP/IPv6 and UDP/IPv6 checksum offload.
  • Supports jumbo frames up to 9000 bytes (strongly recommended for 2.5GBit operation).
  • Fully optimized for┬áMojave and above. Note that older versions of macOS might not support 2.5GB Ethernet.
  • Supports Wake on LAN (untested).
  • Supports VLAN (untested).
  • Support for Energy Efficient Ethernet (EEE) which can be disabled by setting enableEEE to NO in the drivers Info.plist without rebuild. The default is YES.
  • The driver is published under GPLv2.

What's New in Version 1.1.0   See changelog


  • Updated Linux sources to 9.005.01.
  • Fixed auto-negotiation for all speeds (including 2.5 Gigabit).
  • Added support for adaptive poll interval in 2.5 Gigabit mode.
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