Supermicro - AOC-2UR68G4-I4XTS - Riser Card 2U Quad Port 10GbE RJ45 SFP+ AOC-2UR68G4-I4XTS - Supermicro - Ultra Riser Card 2U with Quad port 10GbE 2x RJ45 and 2x SFP+ $512.13
Supermicro - AOC-2UR68-I2XT - Riser Card 2U 2-Port 10GBase-T AOC-2UR68-I2XT - Supermicro - 2U Ultra Riser AOC for 2x 10GBase-T port $118.85
Supermicro - AOC-2UR68G4-M2TS - Riser Card 2U 2-Port 25GbE SFP28 PCIe AOC-2UR68G4-M2TS - Supermicro - Ultra Riser Card 2U 2-port 25GbE SFP28, based on Mellanox CX-6 LX, 1 PCIe $446.29
Supermicro - AOC-URG4N4-I2XT - Riser Card 1U 2-Port 10GBase-T RJ45 AOC-URG4N4-I2XT - Supermicro - Ultra Riser Card 1U with 2-Port 10GBase-T RJ45 $338.88
Supermicro - AOC-2UR68-I2XS - Riser Card 2U Dual Port 10GbE AOC-2UR68-I2XS - Supermicro - 2U Ultra Riser Adapter Based on Intel 82599ES $347.20