Check the listing for details. HP 48GX scientific calculator, excellent condition, Spanish manuals, case, cable. Condition: Used. Listed at 506.88 USD. HP 48GX scientific calculator, excellent condition, Spanish manuals, case, cable. This is one of the best scientific calculators ever made, and loved by collectors. I used this calculator as an Engineering student in the 1990s-2000s, and after that it was kept in a drawer. The calculator is fully functional, with only minor signs of wear and tear in the back. The manuals are in Spanish (except for the message booklet, that is multilingual), and in very good condition, with some scuffs and a crease where they open. I also provide the original connection cable, barely used. The original soft case to carry the calculator does have usage small marks and scuffs, but the zipper runs without issues. Model:HP 48GXSerial No.:ID73703820Made in:Indonesia, 1993Processor:4 MHz YorkeCore:Saturn 1LT8Memory:128kB RAM expandableExpansion:128kB and 4MB card slotsDisplay:131 x 64 pixel mono LCDInput:Reverse Polish NotationPrg Language:RPLConnectivity:1×4-pin RS-232Wireless:HP SIRRelease Year:1993 – 20033x AAA batteriesCommunication protocol(s): Kermit (protocol), XmodemOn-board ROM: 512 KBOn-board RAM: 128 KBUser programmable, with prompts, conditional branches, indexed loops, subroutinesRPN entry logicFunctions: math, exponential, trig, inverse trig, hyperbolics, numerical integration (area under a curve), HP solve (root-finder), complex number operations, angle/time conversions, base conversions, statistical functions (standard deviation, linear regression); combinations/permutations Note: For international deliveries, buyer may have to pay import duties, according to applicable laws.