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PCIe 6-Port 2.5G Ethernet Network Card Realtek RTL8125B, 6 x RJ45, 2500Mbps, Supports IEEE 802.3bz, GameFast Technology, for NAS, Soft Router, Server & Gaming

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  • 6 x 2.5G Gigabit Ports: Adds six independent 2.5 Gigabit Ethernet RJ45 ports via a single PCIe x4/x8/x16 slot, delivering up to 2.5x the bandwidth of standard Gigabit Ethernet for high-performance networking applications.
  • Realtek RTL8125B Controller: Powered by the advanced Realtek RTL8125B 2.5GbE controller, featuring hardware offloads, ECC/CRC support, and comprehensive power management for reliable 24/7 operation.
  • GameFast Technology: Features proprietary GameFast technology that pauses unnecessary network traffic during online gaming, freeing up to 10% CPU and 20% memory resources while reducing game latency by up to 3x compared to standard NICs.
  • Smart Engine & Advanced Stream Detect 2.0: Automatically analyzes network conditions and optimizes settings for full-speed performance; Advanced Stream Detect ensures low-latency packet processing with up to 3x higher network packet handling performance.
  • Comprehensive Standard Support: Fully compliant with IEEE 802.3bz (2.5GBASE-T), backward compatible with 10/100/1000Mbps, supports jumbo frames up to 16KB, IEEE 1588 time synchronization, VLAN tagging, and Energy Efficient Ethernet (EEE).
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Transform your network performance with this PCIe 6-Port 2.5G Ethernet Network Card. Powered by the Realtek RTL8125B 2.5GbE controller, this high-density adapter adds six independent 2.5 Gigabit RJ45 ports to your system, delivering exceptional bandwidth for NAS devices, soft routers, servers, and gaming rigs. With advanced gaming optimization features, this card is designed to provide the lowest latency and highest performance for both professional and enthusiast applications.

High-Density 2.5G Connectivity

Each of the six ports supports 10/100/1000/2500Mbps auto-negotiation, allowing seamless integration with existing network infrastructure while providing up to 2.5x the bandwidth of standard Gigabit Ethernet. Using standard Cat 6 or Cat 5e cabling, you can achieve full 2.5Gbps speeds without expensive infrastructure upgrades.

GameFast Technology for Competitive Gaming

Purpose-built for gamers, this card includes proprietary GameFast technology that:

  1. Pauses unnecessary background network traffic during online gaming sessions
  2. Frees up to 10% CPU resources and 20% memory resources
  3. Reduces game latency by up to 3x compared to standard network cards
  4. Ensures uninterrupted, low-latency gaming performance

Smart Engine & Advanced Stream Detect 2.0

The card automatically analyzes network conditions and optimizes settings for peak performance:

  1. Smart Engine: Dynamically adjusts network parameters based on real-time conditions
  2. Advanced Stream Detect 2.0: Prioritizes gaming and latency-sensitive traffic
  3. Up to 3x higher network packet handling performance than standard NICs


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