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D-Link DXE-820T Dual Port 10Gbase NIC Adapter Review



/ 1 year ago

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Introduction


10Gbase

Among our recent upgrade to 10 Gbit networking here in the eTeknix review section wasn’t just the awesome 12-port smart switch that we saw a little while ago, D-Link also supplied me with a DXE-820T dual-port 10 Gbit Ethernet Network card to be able to connect with the switch in full speed. After all, what good does a 10 Gbps switch do when my test rig doesn’t have the same kind of performance.

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The D-Link DXE-820T is a dual-port 10 GBASE-T RJ-45 PCI Express high-performance adapter designed for the high-speed PCI Express bus architecture. This adapter offers the increased bandwidth needed in modern environments as well as being a reliable and functional PCI network card. It has been specifically designed to allow throughput at rates up to 40 Gbps, thus eliminating the bottleneck that exists with current 32 and 64-bit PCI bus architectures.

The DXE-820T requires a PCI-E v2 x8 or x16 slot for enough bandwidth, but you don’t need to provide any extra power connectors or other things besides your network cables, naturally. The card is capable of a transmitting distance of up to 100m with Cat 6A or higher in 10 GBASE-T mode and up to 100m with Cat 5 type cables in Gigabit mode. This makes the placement of the switch a lot easier.

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The DXE-820T features TCP, UDP, and IP checksum offloading functionality, which transfers the checksum processing tasks from the computer’s own CPU and onto the network card itself. The DXE-820T’s ability to handle the checksum processing means that the CPU’s processing power can be used for other tasks while still achieving 20 Gbps network speeds. It also means that the network card needs some extra cooling in the form of an active fan as well as a passive heatsink.

The adapter also features an onboard screening of 802.1Q VLAN tagged Ethernet frames, allowing you to assign multiple subnets to each server and isolate devices within each VLAN from the rest of the network for better traffic control and security. With support for advanced features such as 802.3x flow control, jumbo frames, and SNMP for network management, the DXE-820T can easily interoperate with your current networking equipment.

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With two ports at your disposal, you can increase the network throughput even further than the 10 Gbit per second on each port. With Smart Load BalancingTM, the DXE-820T can configure multiple adapters to work as a team, sharing traffic and ensuring data reliability. This both creates a faster network and provides fault tolerance resulting in a stable and efficient network.

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The low profile design allows the deployment in space restricted areas and D-Link also included a low-profile slot cover right away. The card itself is powered by Broadcom’s BCM57810 chip.

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The card naturally supports Jumbo Frames for optimized setups and it allows for values up to 9K. The DXE-820T is compatible with all major operating systems with drivers available for both user systems and server systems such as Windows Server 2012 or Solaris 11.

D-Link_DXE-820T-Photo-bottomFeature Highlights

  • High-Speed data transmission at rates up to 40Gbps allow for seamless data transfer.
  • 10GBASE-T technology supports distances to 100m over CAT6A or better copper cable.
  • Advanced Features: 802.3x flow control for traffic management, 802.1Q VLAN tagging for increased security, and checksum offloading to reduce CPU processing burden.
  • Bandwidth Management: NIC partitioning enables administrators to manage bandwidth for greater network efficiency.

Specifications

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Packaging and Accessories

The DXE-820T NIC card comes in a very neutral box that only really reveals that we have a D-Link product inside. But it’s a network card and it isn’t like you would put the box in the display after installing the card anyway, so simply is good.

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We do find a little sticker on the rear of the box that reveals what is inside, the model number along with serial, mac address, and hardware version.

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There is both a driver disk and a quick installation manual inside the box, and D-Link also included a low-profile bracket for use in small-form-factor systems. Everything you need to get going with that extra speed.

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