BMAX B4 Ultra with Intel N150: Complete Review, Tests and Opinions 2026

The BMAX B4 Ultra is a very solid option for those looking for an affordable mini PC for office, home, or HTPC (Home Theater PC). It offers a price-to-performance ratio that's hard to beat in its price range.

Where to Buy (Prices)

📦 Unboxing and Box Contents

Upon opening the BMAX B4 Ultra box, you will find a clean and functional presentation:

• 🖥️ The Mini PC

• 🔌 DC 12V/2A power adapter with standard plug

• 📺 HDMI cable included

• 🔩 VESA mount for mounting behind the monitor

• 📄 User manual in English and Chinese

The power cable is a weak point noted in the Notebookcheck review: it's quite short, which can be inconvenient depending on your desk setup.

📋 Technical Specifications

🎨 Design and Construction Quality

The BMAX B4 Ultra features a compact plastic chassis with a glossy top cover  that, while aesthetically pleasing, easily accumulates fingerprints.

Its dimensions of just 108 × 105 × 36 mm make it smaller than a paperback book: it fits perfectly behind a monitor thanks to the included VESA mount.

The construction is functional and competent for its price, although without the level of metallic solidity of more expensive options.

🖥️ Screen and Multimedia

The BMAX B4 Ultra can connect to up to three monitors simultaneously: 2× HDMI and 1× USB-C.

It supports 4K@60Hz resolution on all ports.

For 1080p streaming, it works smoothly and stably.

For audio, it has a 3.5 mm jack for combined headphones/microphone.

⚙️ Performance and Software

The Intel N150 processor outperforms the popular N100 by 15-25% in single-core and multi-core tasks, respectively. In practice, this translates to a smoother experience browsing, with multiple tabs open, using office applications, and playing multimedia.

The benchmarks speak for themselves:

• Cinebench R23 Multi: ~2,424 points (comparable to the Beelink EQ14 with the same chip)

• PCMark 10: ~3,050 points (acceptable for everyday tasks)

• Geekbench 6 Single-Core: ~1.218 puntos

Windows 11 comes pre-installed and generally without excessive bloatware, although it's recommended to review the pre-installed apps after the first boot. Windows updates work normally.

🔋 Energy Consumption and Cables

One of the great strengths of this mini PC is its ultra-efficient energy consumption:

• 🟢 Idle: ~7W measured at the power outlet

• 🔵 Sustained charge: 15W (PL1)

• 🔴 Maximum peak power: 20W (PL2)

This translates into a virtually imperceptible electricity bill, even if you leave it on all day. The included adapter is 12V/2A (24W), sufficient for peak consumption. As mentioned, the cable is short, so keep an extension cord handy.

🌡️ Temperature and Noise (Actual Thermal)

The N150 is designed to consume only 6W typically, so temperatures remain low under normal conditions.

The integrated fan, however, never completely stops ; it's always active, albeit at low speed. At idle or during light use, it's almost inaudible; under sustained load, it becomes slightly noticeable, though not bothersome.

For a living room or bedroom environment, noise shouldn't be an issue. No thermal throttling (performance reduction due to heat) has been reported under normal usage conditions.

🔌 Connectivity and Extras

The B4 Ultra offers very complete connectivity for its price:

• Video: 2× HDMI 2.1 (4K@60Hz) + 1× USB-C (data and video)

• USB: 2× USB 3.0 + 2× USB 2.0 (frontal: 2× USB + 1× USB-C + jack 3.5mm)

• Red: Ethernet Gigabit RJ-45 + Wi-Fi Dual Band 2.4/5 GHz (Wi-Fi 5, 802.11ac)

• Bluetooth: 5.0

• Audio: 3.5 mm combo headphone/microphone jack

❌ Does not include: NFC, fingerprint reader, SD card reader, Wi-Fi 6, or IP water resistance rating. Wi-Fi 5 is the weakest point in connectivity: real-world tests show only ~251 Mbps transfer speed on iperf3, compared to 965 Mbps for the Asus NUC 14 Essential.

🔧 Expansion and Upgrades

The B4 Ultra is surprisingly easy to open (just a Phillips screwdriver) and offers several expansion options:

💡 If you want to improve performance, the best option is to replace the SATA SSD with an M.2 NVMe (the slot supports it even though the one included is SATA). Adding a 2.5" drive is ideal for extra multimedia storage.

🆚 Comparison with Direct Competitors

The Beelink EQ14 has a faster SSD (NVMe) and Wi-Fi 6, but the BMAX wins on price and for being the only one that includes a 2.5" bay.

💬 Reviews on Well-Known Pages

User reviews and expert media provide a consistent view:

🔵 Notebookcheck (professional review of the B4 Turbo model, same N150 chip): Rates it as "ideal for a basic HTPC", highlighting its support for a secondary 2.5" drive and ease of maintenance, but criticizing the slow Wi-Fi and the always-on fan. Overall rating: 58/100.

🟢 HobbyConsolas: Describes it as "the best-selling Mini PC on AliExpress, and rightly so" — highlighting its value for money with a 13th gen Intel N150, triple 4K output and Windows 11 Pro.

🟡 ItemsArena (IT): In their review, they call it "Il piccolo gigante" (the little giant), highlighting that it is more than adequate for daily use, although they acknowledge its limitations in heavy tasks.

🔵 bmaxbuy.com (official blog): Presents it as a "Compact Powerhouse for Modern Productivity", highlighting the N150 processor, 12GB LPDDR5 RAM, and 4K connectivity.

🟢 AliExpress users: Average rating of 4.5/5 with thousands of units sold, praising the size, relative quietness, and ease of setup.

🧪 Technical Tests

Based on data from Notebookcheck (model B4 Turbo, same platform as N150):

🔵 CPU:

🔵 SSD (included, SATA):

⚠️ SATA SSD speeds are significantly lower than those of an NVMe PCIe, which can exceed 2,000 MB/s read speeds.

🔵 Memory:

• ~20,280 MB/s in memory copy (single channel, limiting for the integrated GPU)

🎮 Gaming and Emulation

The Intel UHD Graphics GPU (24 EUs at 1000 MHz) isn't a graphics powerhouse, but it offers much more than it seems:

✅ What you CAN do:

• 🕹️ Retro emulation: SNES, GBA, PS1, N64, PS2 (PCSX2) and even GameCube/Wii with Dolphin at moderate resolutions — they work very well

• 🎮 Lightweight games: Minecraft (60 fps at 720p), Stardew Valley, Among Us, 2D indie games

• 🎮 Classic PC games: GTA Vice City/San Andreas, CS:GO (low settings), Dota 2 at 720p (~44-80 fps)

• 🎮 GTA V: 44-59 fps at 768p with minimum settings (playable)

❌ What you CAN'T do:

• Gaming moderno: Cyberpunk 2077, Hogwarts Legacy, Alan Wake 2

• Smooth PS3/Xbox 360 emulation

• 4K video editing with real-time rendering

❓ Frequently Asked Questions (FAQ)

❓ Can I use the BMAX B4 Ultra as my main PC?
Yes, perfectly for office work, browsing, email, and video streaming. Not for heavy graphic design or video editing.

❓ Does it support 3 monitors simultaneously?
Yes: 2× HDMI + 1× USB-C, all capable of 4K@60Hz.

❓ Is Wi-Fi enough for 4K streaming?
For 4K streaming, you need approximately 25 Mbps. The B4 Ultra's Wi-Fi 5 can reach approximately 251 Mbps in favorable environments, which is sufficient for streaming. For better speeds, use a Gigabit Ethernet cable.

❓ Does it come with Windows 11 activated?
Yes, it comes with a pre-activated Windows 11 Home license.

❓ Can I connect it to a TV and use it as a media center?
Absolutely, it's one of its most recommended uses. It plays 1080p without any problems and 4K with only occasional, minimal drops.

❓ Can more RAM be added?
There is only one SO-DIMM slot. You can replace the current module with one of higher capacity (up to 16 GB in the standard version).

📅 Price History

Approximate price evolution of the BMAX B4 Ultra / B4 Turbo (12GB-16GB + 512GB) in the main marketplaces:

💡 The best time to buy is usually during 11.11 (Singles' Day) and Black Friday, when prices drop by up to 20-25% on AliExpress.

🏁 Final Conclusion

The BMAX B4 Ultra is ideal for:

• 👨‍💼 Remote workers who need a lightweight PC for office work and video calls

• 🎬 Users looking for a compact HTPC (media center) for the living room

• 🏠 Second PC for bedrooms, kitchen or secondary uses

• 🕹️ Fans of retro emulation (up to PS2/GameCube)

• 💻 Lightweight home servers (Plex, Pi-hole, basic NAS)

Is it worth it? At under €150 with Windows 11 included, the N150, 12GB of RAM, and a 512GB SSD, it's hard to find anything better in its price range. The only real drawbacks are the SATA SSD (which is replaceable) and the Wi-Fi 5 (which can be improved with an Ethernet cable).

Alternatives to consider:

• 🔵 Beelink EQ14 — same chip, NVMe SSD and Wi-Fi 6, but ~€30 more expensive

• 🟢 Acemagic S1 — better multi-core performance with N97, similar price

• 🟡 Asus NUC 14 Essential — much more powerful (N355), but almost twice the price

🛒 Where to Buy?

You can purchase the BMAX B4 Ultra at the following links: