Bought one last week, seems like a solid card. Based on 2x Intel 82599ES chips.
Datasheet: https://www.silicom-usa.com/pr/serv...tworking-adapters/pe310g4spi9-server-adapter/
DELL SILICOM 09TF20 PE310G4i71LB-XR 10GB 4-Port PCIe Network Adapter | eBay
Pulled from a working server
www.ebay.com
Datasheet: https://www.silicom-usa.com/pr/serv...tworking-adapters/pe310g4spi9-server-adapter/