---
product_id: 392903229
title: "Samsung Official Smart Keyboard Trio 500 (EJ-B3400UBEGUS), Black - US Model"
brand: "samsung"
price: "$120.85"
currency: USD
in_stock: true
reviews_count: 6
category: "Samsung"
url: https://www.desertcart.us/products/392903229-samsung-official-smart-keyboard-trio-500-ej-b3400ubegus-black-us
store_origin: US
region: United States of America
---

# Instant Samsung DeX desktop mode 3 customizable Hot Keys Connects 3 devices simultaneously Samsung Official Smart Keyboard Trio 500 (EJ-B3400UBEGUS), Black - US Model

**Brand:** samsung
**Price:** $120.85
**Availability:** ✅ In Stock

## Summary

> ⌨️ Elevate your mobile workspace—type, switch, and conquer with style!

## Quick Answers

- **What is this?** Samsung Official Smart Keyboard Trio 500 (EJ-B3400UBEGUS), Black - US Model by samsung
- **How much does it cost?** $120.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/392903229-samsung-official-smart-keyboard-trio-500-ej-b3400ubegus-black-us)

## Best For

- samsung enthusiasts

## Why This Product

- Trusted samsung brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Broad Compatibility:** Works flawlessly with smartphones, tablets, smart TVs, and laptops—one keyboard to rule them all.
- • **Sleek, Portable Design:** Compact and lightweight at just 526g—carry professional-grade typing comfort wherever you go.
- • **Seamless Multi-Device Control:** Switch effortlessly between 3 devices with a single click—stay in flow, never miss a beat.
- • **Unlock Desktop Power Anywhere:** Activate Samsung DeX for a full desktop-like workspace on your tablet or phone—work smarter, not harder.
- • **Personalized Productivity Boost:** Assign your top 3 apps to Hot Keys for lightning-fast access—your workflow, your rules.

## Overview

The Samsung Smart Keyboard Trio 500 is a sleek, portable Bluetooth keyboard designed for professionals on the move. It supports simultaneous connection to three devices, enabling seamless switching with a click. Integrated Samsung DeX compatibility transforms your mobile device into a desktop-like productivity hub. With three customizable Hot Keys, users gain instant access to favorite apps. Lightweight and compact, it offers broad device compatibility, making it the ultimate tool for multitasking across smartphones, tablets, and smart TVs.

## Description

Samsung’s Smart Keyboard Trio 500 is a portable Bluetooth keyboard with a compact and slim design. You can type on Phones, Tablets and other devices at anytime, anywhere.

Review: nice - nice product
Review: Teclado não é tão macio quanto deveria.

## Features

- Pair multiple devices & switch with a click - Connect it with up to three different devices at once. Enjoy wide compatibility and easy pairing, as a click is all you need to switch between smartphones, tablets, and other devices
- Enter into Samsung DeX for productivity - By accessing DeX via the Samsung Smart Keyboard Trio 500, reaching a desktop-like performance and productivity becomes a reality you can manifest from anywhere. Work with multiple windows at once, efficiently respond to messages and emails on one screen, and achieve beyond the boundaries of devices
- Assign custom Hot Keys to your favorite apps - Have shortcuts to the apps that you use the most, and enjoy one-click access using 3 Hot Keys. Whether it's your favorite content streaming app or your most frequently used utility app, launching them is always a Hot Key away
- Wireless keyboard to-go for when you're on the go - Always be ready to achieve. Compact, slim, and tastefully designed yet packed with special functions for a boosted performance, the wirelessly connectable Samsung Smart Keyboard Trio 500 delivers a comfortable typing experience wherever you are
- Compatible devices: smart tv

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09MDMXLN4 |
| Are Batteries Included | Yes |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #22,258 in Computers ( See Top 100 in Computers ) #569 in Computer Keyboards |
| Brand | Samsung |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (443) |
| Date First Available | 9 December 2021 |
| Hardware Platform | Laptop, Smartphone, Tablet |
| Item Weight | 526 g |
| Item model number | EJ-B3400UBEGUS |
| Lithium Battery Energy Content | 1 Watt Hours |
| Lithium Battery Packaging | Batteries contained in equipment |
| Manufacturer | Samsung |
| Number of USB 2.0 Ports | 1 |
| Operating System | Windows 10 |
| Power Source | Battery Powered |
| Product Dimensions | 29.01 x 2.95 x 13.31 cm; 526.17 g |
| Series | Samsung keyboard trio 500 |

## Product Details

- **Brand:** Samsung
- **Compatible devices:** Laptop, Smart TV, Smartphone, Tablet
- **Connectivity technology:** wireless
- **Keyboard description:** Wireless
- **Recommended uses for product:** Office

## Images

![Samsung Official Smart Keyboard Trio 500 (EJ-B3400UBEGUS), Black - US Model - Image 1](https://m.media-amazon.com/images/I/814r7XWIqtS.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: does it work with samsung galaxy Fold2 Phone ?**
A: Works with any Samsung or Android phone. It is just tailored towards Samsung Phones with the Hot Keys. Get it, it's worth it.

**Q: Will this keyboard work with a Samsung M70b smart monitor?**
A: David, what is the secret to input the passcode with this keyboard on the Samsung smart monitor M70b? The monitor recognizes the Trio 500 keyboard but I have no way to input the PIN to pair up.

**Q: Can theirs keyboard be paired with samsung model un50r u7100?**
A: Yes. Any Samsung Phone.

**Q: Can this be paired with Samsung S22?**
A: I have a S21 and it paired. I'd guess it will pair to an S22.

## Customer Reviews

### ⭐⭐⭐ nice
*by A***V on 26 October 2025*

nice product

### ⭐⭐⭐⭐ Review
*by C***N on 7 August 2025*

Teclado não é tão macio quanto deveria.

### ⭐⭐⭐⭐⭐ Review
*by J***O on 14 July 2025*

This is the best keyboard so far from Samsung and I got the US version on a lowest price 77sar

## Frequently Bought Together

- SAMSUNG Official Smart Keyboard Trio 500 (EJ-B3400UBEGUS), Black - US Model
- Samsung Bluetooth Wireless Mouse Slim, Compact, Silent, for Laptop, Tablet, MacBook, Android, Windows - Black

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-13*