Amazon.com: 10Gb SFP+ PCI-E Network Card NIC, Compare to Intel X520-DA2, with Intel 82599ES Chip, Dual SFP+ Port, PCI Express X8, Ethernet Converged Network Adapter Support Windows Server /Linux/VMware : Electronics
Intel X520-DA2 E10G42BTDA
Intel X520 Dual Port 10Gigabit SFP Server Adapter Ethernet PCIe Low Profile | Dell USA
Intel X520 and X540 Dual Port 10 GbE Adapters for System x and ThinkServer Product Guide (withdrawn product) > Lenovo Press
IBM Intel X520-DA2 Dual Port 10GbE SFP+ Server Network Adapter Card 49Y7962 | eBay
Amazon.com: 10Gb NIC PCI-E Network Card for Intel X520-DA1(Intel E10G42BTDA), with Intel 82599EN Controller, Single SFP+ Port, 10G PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware : Electronics
HPE Ethernet 10Gb 2-port FLR-SFP+ X520-DA2 Adapter | HPE Store US
HPE Ethernet 10Gb 2-port SFP+ X520-DA2 Adapter | HPE Store US