The MVME6100 series is the first VMEbus single-board computer (SBC) designed with the Tundra Tsi148 VMEbus interface chip offering 2eSST VMEbus performance. The 2eSST (two edge source synchronous transfer) protocol allows the VMEbus to run at a practical bandwidth of 320 MB/s in most cases. The MVME6100 series provides more than just faster VMEbus transfer rates; it provides balanced performance from the processor, memory subsystem, local buses and I/O subsystems. The processor running at speeds of 1.267 GHz is ideal for data-intensive applications and the host bridge, with support for a 133 MHz host bus and a 133 MHz DDR memory bus, is well matched to the processor. To ensure that the MVME6100 series can handle the 320 MB/s data rates of 2eSST, the Tsi148 VMEbus interface chip is connected to one of the 133 MHz PCI-X buses on the host bridge. The second PCI-X bus has dual PMC-X sites -- each site supports PMC or PMC-X cards supporting PCI bus speeds from 33 to 100 MHz. The MVME6100 also offers dual Gigabit Ethernet interfaces.