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Soekris Engineering, Inc.


The lan1841 is a short standard profile PCI Express board with four independent gigabit ethernet controllers, for systems where the highest number of ports are needed, and is well suited for adding additional ethernet ports to the Soekris net6501 communication computers.



•  Four Intel 82574L Gigabit Ethernet controllers
•  IDT 89HPES5T5 PCI Express switch chip
•  High performance PCI Express busmaster interface with large buffers and interrupt moderation
•  Quad Shielded RJ-45 connector with LED's for speed and activity
•  2.5 Gbps X1 PCI Express 1.1 expansion card
•  IEEE 802.3u 1000 Mps 1000BaseTX, full duplex
•  IEEE 802.3u 10 Mbps 10BaseT and 100 Mps 100BaseTX, half and full duplex
•  IEEE 802.3u Auto-Negotiation
•  IEEE 802.3x Full duplex flow control
•  IEEE 802.1q Multiple VLAN support
•  Supports Auto-MDIX function and 9KB jumbo frames
•  UDP, TCP/IP checksum offload for IPv4 and IPv6 frames
•  All ports protected to 400W/25A Surge
•  Four ports short standard PCI Express board, power max 4W from 3.3V
•  Operating temperature 0-60 °C


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