# Scientific Calculator Casio FX-87DE X Pocket Black

**URL:** https://aio.lv/en/product--casio-fx87dex--4147078
**Data updated:** 2026-01-13 21:19 (EET)
**Category:** Calculators
**Manufacturer:** CASIO
**Manufacturer code:** FX87DEX
**EAN:** 4549526611858
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--casio-fx87dex--4147078

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Casio FX-87DE X is a pocket scientific calculator featuring a dual power source (battery and solar). It has a sleek black design and is equipped with a protective cover. Ideal for students and professionals, it offers a wide range of functions for complex calculations, making it a reliable tool for math and science tasks.

## Long description

The Casio FX-87DE X Pocket Black is a compact scientific calculator designed for everyday academic and professional use. It combines a dual power source—solar panel with battery backup—with a protective slide-on cover and a compact form factor that fits easily into a pocket or notebook pouch. The device provides a broad selection of built-in mathematical and scientific functions suitable for classroom examinations and routine technical calculations.
Advantages
The calculator offers a reliable dual power system that reduces the risk of unexpected power loss during use. Its compact pocket-sized design and protective cover enhance portability and durability. The keyboard layout is arranged for efficient input of formulas and functions, while the display supports clear visualization of expressions. A wide function set covers algebraic, trigonometric, statistical, and fractional operations, enabling precise results for complex calculations.
Suitable for
High school and university mathematics classes
Science and engineering problem solving
Statistical data analysis and basic probability calculations
Examination use where approved
Everyday technical and financial calculations
Key specifications
Power: dual power (solar with battery backup)
Form factor: pocket-sized with protective slide-on cover
Functionality: scientific functions including algebraic, trigonometric, logarithmic, exponential, fractions and statistical calculations
Display: multi-line display for clear expression and result viewing
Keyboard: tactile keys arranged for straightforward entry of mathematical expressions
Construction: lightweight housing with durable plastic finish
How to use
Turn the calculator on using the power key or slide off the protective cover to access the keyboard. Enter numerical values and select functions using the labeled keys; multi-step expressions can be input sequentially with use of parentheses and the expression-editing keys. For statistical or fraction operations, select the appropriate mode from the mode menu and follow on-screen prompts for data entry. When not in use, slide the protective cover back on to protect the display and keys. Replace the battery as recommended by the manufacturer when display dimming indicates reduced backup power.
Usage recommendations
Use the Casio FX-87DE X in well-lit environments to maximize solar charging efficiency and store it in a protective case when carrying it in a bag. Clean the housing and keys with a soft, dry cloth; avoid liquids and abrasive cleaners. Before examinations, verify that the model is permitted under exam rules and ensure the battery level is adequate for uninterrupted use.

## Specifications

| Feature | Value |
|---|---|
| Type | Scientific |
| Weight | 0.09 kg |
| Form factor | Pocket |
| Battery type | LR44 |
| Power source | Battery/Solar |
| Height | 11.1 mm |
| Display resolution | 192 x 63 |
| Width | 77 mm |
| Depth | 165.5 mm |
| Backlight display | No |
| Product colour | Black |
| Control type | Buttons |
| Second display | No |
| Display type | LCD |
| Storage media type | Not available |
| Cover | Yes |

## FAQ

### How much does the Scientific Calculator Casio FX-87DE X cost, and is it available for purchase?

The price is 34.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CASIO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CASIO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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