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QNAP TVS873 - SFP+ ...
 
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[Solved] QNAP TVS873 - SFP+ 10Gbps NIC

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(@hans)
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Joined: 11 years ago
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Since it took me a while to figure this out, I figured I'd share this here.

So I wanted to get my feet wet with SFP+ (10Gb/s either over copper for short distances or optical for larger distances) and connect it to a switch with 8 ports, 2.5GB/s each.

The usually listed cards (by QNAP or in their compatibility list) are just too expensive.

However, I did find this single SFP+ PCIe car on AliExpress for $34:
Mellanox MCX311A-XCAT Cx311a ConnectX-3 En 10G Ethernet 10GBe SFP+ PCIe NIC

Comes with a regular bracket and a low profile bracket.
My QNAP recognized it right away (TVS873 running QTS 5.x).

From what I found online: the keywords here are Mellanix ConnectX-3 MCX311A-XCAT (single port, the dual port may not work).

Next I got a cheap $55 switch to match (sold by a TP-Link outlet store):

Lianguo 8 Poort 2.5gbe Ethernet Switch 2.5Gbps Netwerk Switcher 1 Poort 10gbe SFP+ (unmanaged)

It has a one 10Gb SFP+ port, and 8x 2.5 GB ports.

To connect the two, I did get a 1 meter SPF+ passive copper cable for only $9.

And a 10 meter CAT 6 cable for $5, and a USB-c 2.5Gbps ethernet adaptor for $6 ... yes for $6, you're reading that right ...

All this combined boosted copying speed from around 100 MB/s to 280 MB/s.

 

All in all, cables, switch and everything included not even $100 (at the time of this writing of course).

 


   
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