A couple Hardware Hack nights ago I brought a dual 10Gbe card (10Gb over
copper)
Hp 561FLR-T It has what looks like an offset pcie connector.
Jake thought it wasn't real pcie and he was right. Plug it in and
nothing. lspci shows nothing.
The connector is actually "Flexible-LOM" But someone has reverse
engineered it and designed an adapter:
https://github.com/TobleMiner/HPE-FlexibleLOM-adapter I got an adapter on
Ebay
which was probably copied from that github. And it works. Getting 8Gb up
and down on Sonic Fiber.
These cards are scavenged from old HP servers and you can get them cheap.
Like $20 for 2.
But I found a regular pcie card: Supermicro AOC-STG-i2T which can be found
for about $25 and
doesn't need an adapter.
Thomas