--- product_id: 50525484 title: "FX-991DE X." brand: "casio" price: "β‚ͺ210" currency: ILS in_stock: true reviews_count: 13 category: "Casio" url: https://www.desertcart.co.il/products/50525484-fx-991de-x store_origin: IL region: Israel --- # 4x faster processor speed 4x higher resolution display QR code result visualization FX-991DE X. **Brand:** casio **Price:** β‚ͺ210 **Availability:** βœ… In Stock ## Summary > πŸ“ˆ Elevate your calculationsβ€”where precision meets innovation! ## Quick Answers - **What is this?** FX-991DE X. by casio - **How much does it cost?** β‚ͺ210 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/50525484-fx-991de-x) ## Best For - casio enthusiasts ## Why This Product - Trusted casio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart QR Code Output:** Instantly convert your results into QR codes for seamless visualization on your smartphone or tabletβ€”share and analyze on the go. - β€’ **Crystal-Clear 192x63 LCD:** Experience ultra-sharp visuals with 4x the resolution of previous models, making complex data easier to read and interpret. - β€’ **Lightning-Fast Calculations:** Powered by a processor 4 times faster than its predecessor, handle advanced equations and matrices without lag. - β€’ **Advanced Spreadsheet Functions:** Perform sum, product, mean, max, and min calculations directly on your calculator with intuitive spreadsheet capabilities. - β€’ **Comprehensive Scientific Toolkit:** Solve up to 4th order equations, work with 4x4 matrices, access 47 updated constants, 164 unit conversions, and advanced distribution & regression functions. ## Overview The Casio FX-991DE X ClassWiz is a cutting-edge scientific calculator featuring a high-resolution 192x63 pixel LCD, a processor 4 times faster than previous models, and innovative QR code functionality for result visualization on smart devices. It supports advanced spreadsheet calculations, solves complex equations up to 4th order, and includes extensive scientific constants and unit conversions, making it the ultimate tool for professionals and students seeking precision and efficiency. ## Description From the manufacturer Functions Display The good resolution increases clarity in all areas. This allows the display of an icon menu instead of the classic text menu. Furthermore, this virtually eliminates the need for the previous use of abbreviations. A predominantly German menu navigation is integrated. spreadsheet This application allows the user to use the basic calculations of a spreadsheet calculator for the first time on a technical-scientific calculator. Possible calculations include Sum Calculation, Product Calculation, Mean, Maximum and Minimum commands. Systems of Equations and Matrices The optimized equation solver now also supports solving fourth-order equations, inequalities and systems of equations. It is also possible to work with 4 x 4 matrices. Value Table Value tables can now be output for 2 functions. New editing options improve working with value tables. This means that additional values can now be added and added manually or additional values can be automatically generated at the touch of a button. Casio FX-991DE X ClassWiz The new generation of scientific calculators The Classwiz series offers a new high-resolution 192 Γ— 63 pixel LCD display that is four times the resolution of the well-known FX-DE Plus series. In addition, the computers have new hardware with a 4x faster processor (compared to the FX-DE Plus series) and double the memory. FX-991DE X Technical Scientific Calculator Casio presents the new technical-scientific calculator FX-991DE X of the ClassWiz series with numerous innovations. The popular FX-991DE Plus has been further developed and equipped with innovative functions, such as the QR code function. June 2017 The Society for Education, Information and Media e.V. (GPI) has awarded the technical and scientific calculator Casio FX-991DE X ClassWiz with the Comenius EduMedia seal. Four times higher resolution display German menu navigation and notation QR code function for results visualisation on your smartphone or tablet Systems of Equations & Matrices Integral & Differential Buttons for X and option for easier operation Distribution Functions The various distribution functions, especially the normal and binomial distribution, allow extensive calculations, whose inputs can be carried out more clearly with the new display. . The distribution functions allow the calculation of individual values as well as comfortably of entire lists, which are then clearly presented on the new display. Units & Constants The clear display of 47 updated nature constants and 164 unit conversions eliminates the use of a reference card. regression Data adjustments can be made in the completely revised application. Once entered data can be easily calculated with different regressions. Various regression types are available. QR code function* Display content The newly available QR code function allows you to visualise results of the technical-scientific calculator with your smartphone or tablet. Scan QR Code The result display is converted into a QR code by pressing a button on the calculator. This can then be captured with your smartphone or tablet. Content visualization With the help of the CASIO web service, graphs, diagrams, accessibility aids and tables for the captured data can be displayed and optimally displayed. Review: Thank You desertcart EU! Genuine! Reasonable price! - I’m from the UK and finally got a genuine Casio fx-991EX! Brand new! With RRP! It’s worth it to learn some German instead of paying for a vintage model of calculator at an inflated price. I’m extremely happy with my purchase! This order made my day! After purchasing several fake ones and a damaged second hand one.🌟🌟🌟🌟🌟 Review: It does good math - It does math. ## Features - Casio FX-991DE X ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00VB2ISDM | | Best Sellers Rank | 53,238 in Fashion ( See Top 100 in Fashion ) 256 in Men's Wrist Watches | | Brand | Casio | | Brand Name | Casio | | Calculator Type | Engineering/Scientific | | Colour | black | | Compatible Devices | Casio FX-991DE X | | Customer Reviews | 4.6 out of 5 stars 26,181 Reviews | | Display Type | LCD | | EU Spare Part Availability Duration | 7 Years | | Enclosure Material | Plastic | | Global Trade Identification Number | 04549526611865 | | Item Dimensions L x W | 16.6L x 7.7W centimetres | | Item Type Name | CASIO FX-991DEX Scientific ClassWiz Calculator | | Item Weight | 0.09 Kilograms | | Manufacturer | CASIO | | Manufacturer Part Number | FX-991DE X | | Model Name | Ohne Print | | Model Number | FX-991DE X | | Number of Batteries | 1 CR123A batteries required. (included) | | Number of batteries | 1 CR123A batteries required. (included) | | Power Source | Battery Powered | | Power source | Battery Powered | | Product Warranty | 12 | | Screen Size | 7.9 Centimetres | | Screen size | 7.9 Centimetres | | Unit Count | 1.0 count | ## Product Details - **Brand:** Casio - **Calculator Type:** Engineering/Scientific - **Colour:** black - **Compatible devices:** Casio FX-991DE X - **Material:** Plastic - **Model name:** Ohne Print - **Number of batteries:** 1 CR123A batteries required. (included) - **Power source:** Battery Powered - **Product dimensions:** 16.6L x 7.7W centimetres - **Screen size:** 7.9 Centimetres ## Images ![FX-991DE X. - Image 1](https://m.media-amazon.com/images/I/61BnhImfROL.jpg) ![FX-991DE X. - Image 2](https://m.media-amazon.com/images/I/61J7aRoRSEL.jpg) ![FX-991DE X. - Image 3](https://m.media-amazon.com/images/I/61zxlrwXsEL.jpg) ![FX-991DE X. - Image 4](https://m.media-amazon.com/images/I/61NethqgSlL.jpg) ![FX-991DE X. - Image 5](https://m.media-amazon.com/images/I/61T7cmXaUXL.jpg) ## Questions & Answers **Q: Can you change the language to English?** A: No, there is no option to change the language, try the 991 EX. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Thank You Amazon EU! Genuine! Reasonable price! *by L***N on 13 April 2026* I’m from the UK and finally got a genuine Casio fx-991EX! Brand new! With RRP! It’s worth it to learn some German instead of paying for a vintage model of calculator at an inflated price. I’m extremely happy with my purchase! This order made my day! After purchasing several fake ones and a damaged second hand one.🌟🌟🌟🌟🌟 ### ⭐⭐⭐⭐⭐ It does good math *by A***R on 29 May 2025* It does math. ### ⭐⭐⭐⭐⭐ 😊 *by V***K on 11 October 2024* 😊 ## Frequently Bought Together - Casio FX-991DE X (German) - Zamasha Clear Pencil Case Black | 22x4x9 cm Stylish, Practical and Transparent Pencil Case | Versatile Storage for Stationery, Toiletries, Makeup, Travel & Office Supplies - Casio fx-991CW Advanced Scientific Calculator (UK Version) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.il/products/50525484-fx-991de-x](https://www.desertcart.co.il/products/50525484-fx-991de-x) --- *Product available on Desertcart Israel* *Store origin: IL* *Last updated: 2026-05-27*