It is a hot-pluggable high-density parallel optics transceiver which provides 12 channels of traffic in each direction (Tx and Rx). The module can handle up to 12.5 Gb/s per channel, supporting applications such as 100G Ethernet, three 40G Ethernet channels, and InfiniBand 12xQDR. The module form factor provides the highest density and lowest power dissipation among all standardized pluggable form factors today, specifically targeting short multimode links. Both transceiver modules.