Bmax B4 Turbo

The Bmax B4 Turbo is a small Windows 11 box for a TV, a print server, or a basic office desk. Its Intel N150 is a four-core Twin Lake chip from 2025, built for low power rather than speed. A 2.5-inch SATA bay sits inside next to the SSD, so a second drive goes in without an enclosure. Bmax’s older B4 Plus has a similar port layout and the same kind of bay with an Intel N100.

Pros and cons

Bmax B4 Turbo Comparison Chart

	Bmax B4 Turbo
Price	List Price: $300.00 Amazon Prices: Loading prices...
Version	16GB/512GB/Intel N150
Performance Rating	3.1
Operating System	Windows 11
Processor	Quad-core 3.60 Ghz Intel Processor N150
GPU	Integrated Intel UHD Graphics
RAM	16 GB DDR4 SO-DIMM, single-channel
Internal Storage	512 GB SATA SSD
Dimensions width x length x thickness	4.41 x 4.92 x 1.73 inches (112.01 x 124.97 x 43.94 mm)
Weight	0.69 lbs (0.31 kg)
WiFi	Wi-Fi 5 (802.11ac)
Bluetooth	Bluetooth 5.0
Ethernet	1 Ethernet port at 1 Gbps
HDMI	2 Full-Size HDMI Ports
DisplayPort	DP Alt Mode via front USB-C
VGA	No VGA Ports
USB Ports	2 USB 2.0, 2 USB 3, 1 USB-C Front USB-C with DP and power input
Thunderbolt Ports	No
OCuLink	No
Internal SATA Ports	1 SATA port, includes 2.5" drive bay (2.5-inch SATA bay, drive not included)
Card Reader	No Card Reader
Headphone Jack	combo
Fanless	No
VESA Mount	Yes
In the Box	Mini PC, power adapter, HDMI cable, VESA mount with screws, manual
Expandability	One DDR4 SO-DIMM slot (16GB installed). M.2 2280 SATA slot plus a 2.5-inch SATA bay.

One memory slot and a spare SATA bay

The case measures about 4.9 by 4.4 by 1.7 inches and weighs about 0.7 pounds. The front carries the power button, two USB-A 3.0 ports, a USB-C port, and a 3.5mm headset jack. The back holds two HDMI 2.0 ports, two USB-A 2.0 ports, a gigabit Ethernet jack, and the 12V barrel input. The USB-C port carries DisplayPort video, so the B4 Turbo can run three 4K screens at once. Wireless comes from a Realtek 8821CE card with WiFi 5 and Bluetooth 5.0.

Memory is one 16GB DDR4 SO-DIMM. Bmax rates it at 2666MHz. With one slot, the N150 runs in single-channel mode, which limits graphics and memory-heavy work. The SSD is an M.2 2280 SATA drive, not NVMe. The 2.5-inch bay takes a SATA SSD or a laptop hard drive, which suits a media library or a backup volume.

Reviewer Insights

NotebookCheck

Allen Ngo at NotebookCheck tested a 16GB/512GB unit that Bmax supplied and scored it 58 percent. He wrote that the N150 “still doesn’t come close to older Core i3 options like the Core i3-1115G4.” Against the older N100, the review measured the N150 at 15 percent faster in single-threaded work and 25 percent faster in multi-threaded work. Graphics ran 15 to 20 percent ahead of the average system with the same UHD Graphics in NotebookCheck’s database.

In a one-minute 4K60 video test, the B4 Turbo dropped 7 frames, where the ideal is zero. The SATA SSD topped out at about 500 MB/s, against more than 2000 MB/s on most PCIe drives. Wi-Fi averaged about 251 Mbit/s sending and 266 Mbit/s receiving against a test router.

Under a Prime95 stress test, the CPU spiked to 2.6GHz and 20W, then settled at 2GHz and 15W after about 30 seconds, with the core in the low 50s Celsius. The whole system drew about 7.5W at idle and peaked a little under 30W, above the 26W rating of the small adapter. Ngo found the fan “always active but quiet when idling,” but it ramps up quickly when a browser opens or several apps run. The top panel is smooth glossy plastic, and he noted: “Unsightly fingerprints readily accumulate on the top of the system as a result.”

In the verdict, he wrote, “It’s designed more for streaming or budget server applications rather than a full-fledged primary PC or multimedia system.” He also wrote that the fan and wireless limits “shouldn’t be an issue in a 1080p living room setup.”

Who it’s for

The B4 Turbo fits 1080p streaming on a TV and always-on jobs such as printing or file sharing, along with web browsing and documents. Its N150 has a PassMark CPU score of about 5,300, in the same class as the Intel N100 and N97, which is enough for that work. Photo work and many browser tabs will feel slow, and modern games are out of reach.

Buyers who want more memory bandwidth should look at the B4 Ultra, which uses the same N150 with 12GB of soldered LPDDR5 and a second M.2 slot. The Beelink EQ14 is another N150 box to compare. The Mini PC Comparison Chart lists the rest.

Frequently Asked Questions