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I am attempting to set up a server with a total of four single-mode fiber ports - two need to be at least 1Gb and two must be 10Gb. I have found a variety of 10Gb single-mode fiber network adapters (for example the Intel X520-LR1 and the QLogic 3242-LR), but no 1Gb single-mode fiber adapters. Do they exist?

I will only have two PCI-E x8 slots (unless I am forced to get a larger server), so both network adapters would need to have two ports.

Magellan
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Albeit
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    [They](http://www.gigabit-server-adapter.com/china-single_mode_fiber_sfp_slot_dual_port_lc_fiber_optic_cable_optical_ethernet_converter-367785.html) do [exist](http://www.interfacemasters.com/products/32285.html). – David Schwartz Sep 26 '12 at 22:51
  • Thanks @DavidSchwartz. I think I just figured out what I was missing... if a network adapter has SFP ports, I can install a single-mode fiber SFP transceiver (or multi-mode, or copper) and essentially turn that network adapter into a single-mode fiber adapter. Is that correct? – Albeit Sep 26 '12 at 23:34
  • Yes, that's correct. – David Schwartz Sep 27 '12 at 02:06

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