This is nice notebook and I almost chose that but a ill-informed reviewer said uses non-standard hd (1) and I went with compaq LTE 386s/20 an awful notebook to go with college. Used that compaq to bits even unsoldered 386sx cpu for 25mhz AMD 386sx cpu and replaced the oscillator chip. Worked like a treat and blew away cyrix's 486SLC because compaq used external 1K 2way cache. 1. I found out few years later that L40 SX uses standard simm picking correct chip type and file the middle notch bit deeper, resolder the SMD resistor chips to present correct memory type ID to notebook. HD is actually standard 2.5" notebook hd 44pin IDE. Aggh! Should had known and took that L40 SX instead! FYI: LTE 286 was the first notebook to use electrically standard 44pin pinout but physical pin spacing was not. HD was unique 3.5" x .75" stubby HD by conner. If that hd is bad which is really often is, simply make new cable adapter to accept standard 2.5" notebook HD (done one already and this works). Physical mounting the 2.5" in 3.5" space is up to reader's excerise. If others is wondering, I don't have L40 SX. Someday I will find one cheaply in decent condition to play with. Cheers, Wizard