The Terra HD is a thin and lightweight 11.6" netbook/subnotebook by Linux hardware builder ZaReason. It is powered by a 1.66 GHz Intel Atom N450 CPU and an Intel GMA 3150 graphics processor, and comes with 3 USB ports, 3-in-1 memory card reader, VGA port, Ethernet port, Draft-N WIFI support, headphone and mic jacks, full-size keys, and a VGA webcam.

ZaReason offers several options for customizing the Terra HD: you can choose between black or red finish, 3 or 6-cell battery, 1 or 2GB RAM, hard disk drives from 160 up to 500GB, or solid state drives from 16 to 160GB, different warranty durations, and more.

The base configuration with a start price of US $449.00 includes 1GB RAM, 160 GB HDD, a 3-cell battery, and 1 year warranty. You can also choose between different Linux based operating systems, namely, Ubuntu, Ubuntu Netbook Edition, Kubuntu, Debian, Linux Mint, Fedora, or if you prefer no pre-installed operating system. See the Terra HD product page for details.