According to the invention, a device for transferring data between two workstations connected to a network is provided. This device comprises means for distributing data among a plurality of links of the network. Preferentially, the device comprises a dual-port memory for storing the data. In a preferred embodiment, the device further comprises a high speed interface for transmitting data from a workstation to the memory, associated with each link, a low speed interface for transmitting a part of the data from the memory to this link, and a controller for monitoring the data flow between the workstation and the plurality of links, by controlling the memory and the interfaces.