The E-series ultraportable notebooks offer LED backlit WXGA or WXGA+ displays, Centrino 2 chipsets, Firewire, eSATA, Headphone/Mic, ExpressCard/34, multiple US B ports, DDR3 800MHz memory, and the new DisplayPort video connection. The E4300 offers a step up of options over the E4200, which include the WXGA+ display, faster processors, modular optical bay (for additional batteries most likely), and a wider selection of hard drives over the 32GB or 64GB SSD offered in the E4200.