sentence: hardware the palm tx featured a 312 mhz arm - based intel xscale pxa 270 microprocessor ; a 320x480 transreflective screen that supported 65,000 colors ; 802.11b wi-fi with an internal antenna ; 128 mb of non-volatile storage , of which 100 mb is user accessible ; an sdio and mmc compatible sd expansion card slot ; standard 3.5 mm headphone jack ; infrared i/o port ; single speaker capable of full audio playback ; and an athena connector , referred to as a ` multiconnector , ' with separate data and power input .