Yxk Mini S15 Ultra

The Yxk Mini S15 Ultra is a thin, fanless mini PC built on the Intel N100 (a quad-core Alder Lake-N chip, up to 3.4GHz) with 16GB of DDR4. No fan means no noise, and at 6.54 x 5.12 x 1.18 inches it takes little desk space in a home office or a classroom. It runs Windows 11 and covers web browsing, video streaming, office work, and light coding or emulation. This is entry-level hardware, not a machine for demanding workloads.

Video goes out over HDMI, DisplayPort, and the USB-C port. YXK is an obscure brand, so support and long-term availability are uncertain.

Yxk Mini S15 Ultra Comparison Chart

	Yxk Mini S15 Ultra	Yxk Mini S15 Ultra	Yxk Mini S15 Ultra
Price	List Price: $199.99 Amazon Prices: Check Price on Amazon	List Price: $229.99 Amazon Prices: Check Price on Amazon	List Price: $129.99 Amazon Prices: Check Price on Amazon
Version	16GB/512GB/Intel N100	16GB/1TB/Intel N100	8GB/256GB/Intel N100
Performance Rating	3.1	3.1	2.7
Operating System	Windows 11	Windows 11	Windows 11
Processor	Quad-core 3.40 Ghz (max 3.40 Ghz) Intel Processor N100	Quad-core 3.40 Ghz (max 3.40 Ghz) Intel Processor N100	Quad-core 3.40 Ghz (max 3.40 Ghz) Intel Processor N100
GPU	Integrated Intel UHD Graphics	Integrated Intel UHD Graphics	Integrated Intel UHD Graphics
RAM	16 GB	16 GB	8 GB
Internal Storage	512 GB	1 TB	256 GB
Dimensions width x length x thickness	6.54 x 5.12 x 1.18 inches (166.12 x 130.05 x 29.97 mm)	6.54 x 5.12 x 1.18 inches (166.12 x 130.05 x 29.97 mm)	6.54 x 5.12 x 1.18 inches (166.12 x 130.05 x 29.97 mm)
Weight	unknown	unknown	unknown
WiFi	Wi-Fi 6 (802.11ax)	Wi-Fi 6 (802.11ax)	Wi-Fi 6 (802.11ax)
Bluetooth	Bluetooth 5.2	Bluetooth 5.2	Bluetooth 5.2
Ethernet	1 Ethernet port at 1 Gbps	1 Ethernet port at 1 Gbps	1 Ethernet port at 1 Gbps
HDMI	1 Full-Size HDMI Port	1 Full-Size HDMI Port	1 Full-Size HDMI Port
DisplayPort	1 DisplayPort (Supports 4K resolution)	1 DisplayPort (Supports 4K resolution)	1 DisplayPort (Supports 4K resolution)
VGA	No VGA Ports	No VGA Ports	No VGA Ports
USB Ports	3 USB 2.0, 2 USB 3, 1 USB-C USB-C supports full functionality, including video output.	3 USB 2.0, 2 USB 3, 1 USB-C USB-C supports full functionality, including video output.	3 USB 2.0, 2 USB 3, 1 USB-C USB-C supports full functionality, including video output.
Thunderbolt Ports	No	No	No
OCuLink	No	No	No
Internal SATA Ports	No SATA ports	No SATA ports	No SATA ports
Card Reader	No Card Reader	No Card Reader	No Card Reader
Headphone Jack	combo	combo	combo
Fanless	Yes	Yes	Yes
VESA Mount	No	No	No
In the Box	Power adapter, stand	Power adapter, stand	Power adapter, stand
Expandability	Supports up to 16GB RAM and up to 1TB M.2 SATA SSD.	Supports up to 16GB RAM and up to 1TB M.2 SATA SSD.	Supports up to 16GB RAM and up to 1TB M.2 SATA SSD.

Everyday work runs fine on the N100

The Intel Processor N100 is a quad-core CPU with a maximum clock speed of 3.40 GHz. It was not designed for heavy computing, but it is steady on web browsing, video streaming, and productivity applications. Paired with 16GB of DDR4, it keeps multitasking smooth across light to moderate workloads. The integrated Intel UHD Graphics covers casual gaming, game emulation, and a dual 4K display setup.

The USB-C port supports video output, which is useful with USB-C monitors or AR glasses, and the HDMI and DisplayPort outputs each handle 4K, so a dual-monitor setup works out of the box. Wi-Fi 6 and Bluetooth 5.2 cover wireless, and a Gigabit Ethernet port handles wired networking.

With no fan in the chassis, the machine runs silent and gives off little heat, which suits a shared workspace or a classroom. At 6.54 x 5.12 x 1.18 inches it sits discreetly on a crowded desk or out of sight entirely, though there is no VESA mount, so hiding it behind a monitor is not an option. Storage is an M.2 SATA SSD, 512GB on the middle configuration and 1TB at the top, and either one boots quickly.

Reviewer Insights

YXK is a white-label brand, and the S15 Ultra has not drawn the hands-on lab coverage that mini PCs from Beelink, GEEKOM, or MINISFORUM receive. As of mid-2026 no independent reviewer has published wattmeter readings or their own benchmark results for this unit, so the measured numbers a buyer would normally lean on (idle and load wattage, fan-off skin temperatures, sustained all-core clocks) are missing from the public record for this model.

The most substantial coverage came from CNX Software, where Debashis Das wrote it up on June 27, 2025 as a $119.99 fanless N100 deal rather than a tested review. Das was explicit that the performance figures came from the vendor, not from his own bench: the Cinebench R20 score of 998 points and the 3DMark 11 combined score of 978 are YXK’s own published claims, which CNX relayed without independent verification. Das added the caveat that matters most for a chassis like this, noting that “cooling in such a thin fanless mini PC may not always be optimal, so users should not expect the same level of performance as on actively cooled systems, especially for multi-core workloads.” He placed the device outside demanding work, calling it unsuitable for “video editing or compiling large codebases.”

The Cinebench figure is YXK’s own number rather than a measured result, so expect less in use. The Intel N100 inside is a four-core, four-thread Alder Lake-N part rated at a 6W base power and a 3.4 GHz burst, and its PassMark CPU Mark is roughly 5,305. It was a sensible budget chip when it launched in early 2023; by 2026 it is a three-year-old part that handles a browser, 1080p and 4K video playback, and office work without complaint and stalls on anything heavier. The fanless design that keeps the S15 Ultra silent is also the reason its sustained multi-core output is likely to sit below an actively cooled N100 once the chassis heat-soaks, the trade-off Das flagged.

Customer Reviews

Across 64 ratings on Amazon, the Yxk Mini S15 Ultra averages 3.1 stars, with 37 percent leaving five stars and 34 percent leaving one. GMo, a verified buyer, called it “A nice little unit. Quick & easy to set up,” and James Welhan (also verified) liked the layout, writing that it is “the ONLY N100-Based MiniPC on the market that has ALL THE PORTS AT THE BACK.” Several owners agree it handles web browsing, video, and office work fine for the low price, with the understanding that the N100 chip is not built for gaming.

The one-star reviews describe hardware failing over time. Verified buyer Bob Evans reported that it “Worked great for about 3 months,” then the “Wifi started going out intermittently, then Bluetooth died.” Another verified owner, anthony, said it “Did Not Even Last 1 year” before it shut off and would not power back on, and a third buyer reported it bricking after roughly six months. Weigh the low price against the odds of hardware failure inside the first year that these owners describe.

Read more owner reviews on Amazon.

Cheap and silent, but owners report early failures

At its price the S15 Ultra is a reasonable buy for a quiet home office or a classroom where the work is a browser, video, and documents. Windows 11 comes pre-installed, and the small footprint tucks away easily.

The N100 is fine for daily work but not for gaming or heavy workloads, the RAM caps at 16GB single-channel, and there is no VESA mount. The owner reviews also flag Wi-Fi and Bluetooth failures and units dying inside the first year, and YXK’s support record is unknown, so a comparable N100 box from Beelink or GMKtec is the safer buy. To compare options, use Starry Hope’s Mini PC Comparison Chart.

Frequently Asked Questions