Review on Syba Gigabit Ethernet Express Controller by Michael Shim

The card works at wired speed when 1 port is used, but when both ports are used the total speed does not exceed 3Gbps. While this is still 50% better than 2 x 1Gb/s cards, it is still far from what the theoretical specs should allow. The same system with 2 cards with 1 2.5Gbps port offers near wired speeds and another dual port. The PCIe x4 card did the same. In these circumstances, I would recommend either sticking with cards that have a single 2.5GB port or getting a better dual port card.