Kirkwood is a system on a chip (SoC) from Marvell that integrates an ARM CPU, Ethernet, SATA, USB, SDIO and other functionality in one chip. Kirkwood is targeted at Network Attached Storage (NAS) devices, digital home media servers, plug computers and other devices. Kirkwood based devices are a great platform to run Debian and together with Debian they can be a very powerful environment.
Debian supports a number of Kirkwood based devices. There are additional pages with instructions and information about all supported devices: