The 5100 Series comes in two versions, the ST5111 with a reflective 10.4-inch display, and the ST5112 with a transmissive 12.1-inch wide-viewing-angle Hydis display (or even a coated outdoor version). Both initially had 1.2GHz ultra-low-voltage Intel Core Duo U2500 processors running at 1.2GHz that were then replaced with 1.33GHz Core 2 Duo U7600 and U7700 chips, and both are available with Atheros 802.11a/bc chipsets as well as with the Intel PRO/Wireless 3945ABG module. Fujitsu offers several optional stands and docks and other accessories needed for business or vertical market applications. The 5112 model has an integrated fingerprint reader.