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Overview

KAMRUI E3B Mini PC – Powered by AMD Ryzen 5 7430U (6C/12T, Zen 3, boost to 4.3GHz) with 16GB LPDDR4X onboard (soldered for stability) & 512GB PCIe SSD up to 4TB expansion. Drive three 4K monitors via HDMI/DP/USB-C – ideal for multitasking, content creation, or immersive gaming. Equipped with WiFi 6, BT5.2, Gigabit LAN, and whisper-quiet cooling. Pre-installed Windows 11 Pro. 5-year warranty & lifetime tech support. Perfect for business, office, home, or light esports.

KAMRUI E3B Mini PC - AMD Ryzen 5 7430U (Beat 5500U, 6C/12T, Up to 4.3GHz) - Windows 11 Pro - 16GB_LPDDR4X 512GB SSD - Triple 4K Display/WiFi6/BT5.2 - Desktop Computer

Model: E3B
Web Code: 19377745
Sold and shipped by | 4.7 seller rating (58 reviews)

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Seller Return Policy

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • 1 x KAMRUI E3B Mini PC
  • 1 x HDMI cable
  • 1 x VESA Mount with Screws
  • 1 x Power Adapter
  • 1 x User Manual

Features

⭐ Efficient AMD Ryzen 5 7430U Processor

Powered by the AMD Ryzen 5 7430U (up to 4.3GHz) with 6 cores and 12 threads, built on the advanced Zen 3 architecture. With a base frequency of 2.3GHz and a max boost of 4.3GHz, this mini PC delivers even smoother multitasking, snappier responsiveness, and excellent power efficiency – perfect for daily computing, productivity, and light gaming.

⭐ Large Capacity & Flexible Storage Expansion

Comes with 16GB onboard LPDDR4X RAM (soldered for stability and speed, not user‑upgradeable) and a fast 512GB PCIe SSD. Need more space? Easily add a 2.5‑inch SSD (sold separately) to expand storage up to 4TB. Flexible and future‑proof, it adapts to your growing work and entertainment needs.

⭐ Triple 4K Display – Immersive Gameplay & Productivity

Connect three independent 4K displays simultaneously via HDMI, DisplayPort, and USB‑C. Whether you're dominating split‑screen battles, editing professional content, or multitasking across multiple monitors, enjoy lag‑free, stutter‑free visuals and a truly immersive experience.

⭐ Comprehensive Connectivity – WiFi 6 & Bluetooth 5.2

Enterprise‑grade connectivity at your fingertips: a 1.0Gbps LAN port for lag‑free online gaming, WiFi 6 for blazing wireless speeds, and Bluetooth 5.2 for seamless pairing with keyboards, mice, and headsets. The ideal hub for gaming setups, home offices, or living room entertainment centers.

⭐ Silent & Energy‑Efficient Operation

Engineered with an advanced low‑noise cooling system, this Windows 11 Pro mini PC stays cool under pressure while running whisper‑quiet – perfect for late‑night gaming or focus‑intensive work. Its energy‑efficient design cuts power costs without sacrificing performance, making it a smart, sustainable choice for gamers and professionals alike.

Q&A – KAMRUI E3B Mini PC (AMD Ryzen 5 7430U)

1. Can you tell me more about the KAMRUI brand?

Absolutely. KAMRUI is a brand dedicated to the research, design, production, and sales of high‑quality mini PCs. We adhere to the principle of "making good products and focusing on user experience," constantly optimizing products based on user feedback, pursuing excellent quality, and innovating from customer needs.

2. What after‑sales service do you offer?

We stand behind every Mini PC we sell:

– 30‑Day Quality Guarantee – If you encounter any quality issue within 30 days of purchase, we will unconditionally refund your order or send you a brand‑new replacement.

– 30‑Day Return Window – You have 30 days from receipt to return the Mini PC for any reason, as long as it’s in original condition with all accessories. After inspection, we process your refund.

– 5‑Year Manufacturer’s Warranty – Covers defects in materials or workmanship (accidental or user‑caused damage not included).

3. What technical support do you provide?

We offer ongoing support:

– A detailed user manual for basic troubleshooting and setup.

– Email support via the platform – just contact us, and our team responds quickly.

– Lifetime technical assistance – even after the warranty, we help with driver updates, system configuration, and upgrade advice.

4. What are the shipping and delivery times?

We offer standard shipping from our local warehouse. Orders are processed within 1–2 business days via major carriers. Delivery typically takes 3–7 business days depending on your region.

5. What is your return policy?

You have a 30‑day return window after receiving your Mini PC. Please return it in original condition (including all accessories and packaging). Once inspected at our warehouse, we will process your refund. (See also Question 2 for our 30‑day quality guarantee.)

6. What is the warranty period?

All KAMRUI Mini PCs come with a standard 5‑year manufacturer's warranty covering defects in materials or workmanship. Accidental damage, user‑caused damage, or improper use are not covered.

7. Do you offer technical support or after‑sales service?

Yes. You can refer to the included user manual for troubleshooting. For further assistance, contact us via email on the platform – we’ll help resolve your issue promptly. (See also Question 3 for lifetime assistance details.)

8. What additional items do I need to use this Mini PC?

You’ll need your own monitor, keyboard, and mouse. The Mini PC comes with Windows 11 Pro pre‑installed. Just plug it in, connect your peripherals, and follow the simple on‑screen setup.

9. Is this Mini PC suitable for gaming?

Yes, it’s designed for light gaming and everyday use. The AMD Ryzen 5 7430U processor (6 cores, 12 threads) handles popular titles like League of Legends, CS:GO, and casual games smoothly, with improved performance over previous generations. For demanding AAA games (e.g., Cyberpunk 2077, Call of Duty), we recommend a Mini PC with a dedicated GPU – check our other models.

10. Can I upgrade the RAM and storage?

The RAM is 16GB LPDDR4X onboard and soldered, so it is not user‑upgradeable. However, storage can be expanded by adding a 2.5‑inch SSD (up to 4TB) in the dedicated drive bay, in addition to the pre‑installed 512GB PCIe SSD.

11. Does it support triple monitors at 4K?

Yes. Connect three 4K displays simultaneously via HDMI, DisplayPort, and USB‑C. Perfect for trading, content creation, or immersive multi‑screen gaming.

12. What operating system is pre‑installed?

Windows 11 Pro comes pre‑installed. During initial setup, you can choose your preferred language (English, French, and many others). The user manual is available in English (printed + electronic) and other languages online.

13. Is the Mini PC quiet under load?

Yes. It features an advanced low‑noise cooling system that keeps temperatures in check while running very quietly – ideal for late‑night use or noise‑sensitive environments.ENG

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • Quebec
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
See our return policy to find specific return information for this product and steps on how to return by mail.