Beelink SER3

The Beelink SER3 is a Windows mini PC measuring 4.45 by 4.96 by 1.57 inches. The main configuration runs an AMD Ryzen 7 3750H, a four-core, eight-thread Zen+ chip with integrated Radeon RX Vega 10 graphics, and Beelink also sells a lower-cost build around the dual-core Ryzen 3 3200U with Vega 3. Both cover everyday productivity, web browsing, and 4K media playback. The chassis is metal, and the VESA bracket in the box mounts the machine behind a monitor. Two SO-DIMM slots sit alongside an M.2 NVMe slot and a 2.5-inch SATA bay, so memory and storage stay open to expansion after purchase.

Pros and Cons

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Beelink SER3 Comparison Chart

	Beelink SER3	Beelink SER3	Beelink SER3
Price	List Price: Amazon Prices: Check Price on Amazon	List Price: $229 Amazon Prices: Loading prices...	List Price: $199.00 Amazon Prices: Loading prices...
Version	Ryzen 7 3750H / 16GB / 512GB	Ryzen 3 3200U / 16GB / 500GB	Ryzen 3 3200U / 8GB / 256GB
Performance Rating	3.4	2.9	2.5
Operating System	Windows 11 Pro	Windows 11 Pro	Windows 11 Pro
Processor	Quad-core 2.30 Ghz (max 4.00 Ghz) AMD Ryzen 7 3750H	Dual-core 2.60 Ghz (max 3.50 Ghz) AMD Ryzen 3 3200U	Dual-core 2.60 Ghz (max 3.50 Ghz) AMD Ryzen 3 3200U
GPU	Integrated Radeon RX Vega 10 Graphics	Integrated Radeon RX Vega 3 Graphics	Integrated Radeon RX Vega 3 Graphics
RAM	16 GB DDR4 SO-DIMM	16 GB DDR4 SO-DIMM	8 GB DDR4 SO-DIMM
Internal Storage	512 GB	500 GB	256 GB
Dimensions width x length x thickness	4.45 x 4.96 x 1.57 inches (113.03 x 125.98 x 39.88 mm)	4.45 x 4.96 x 1.57 inches (113.03 x 125.98 x 39.88 mm)	4.45 x 4.96 x 1.57 inches (113.03 x 125.98 x 39.88 mm)
Weight	1.08 lbs (0.49 kg)	1.08 lbs (0.49 kg)	1.08 lbs (0.49 kg)
WiFi	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Bluetooth	Bluetooth 4.2	Bluetooth 4.2	Bluetooth 4.2
Ethernet	1 Ethernet port at 1 Gbps	1 Ethernet port at 1 Gbps	1 Ethernet port at 1 Gbps
HDMI	2 Full-Size HDMI Ports	2 Full-Size HDMI Ports	2 Full-Size HDMI Ports
DisplayPort	No DisplayPort	No DisplayPort	No DisplayPort
VGA	No VGA Ports	No VGA Ports	No VGA Ports
USB Ports	4 USB 3, 1 USB-C USB-C port supports DisplayPort output	4 USB 3, 1 USB-C USB-C port supports DisplayPort output	4 USB 3, 1 USB-C USB-C port supports DisplayPort output
Thunderbolt Ports	No	No	No
OCuLink	No	No	No
Internal SATA Ports	1 SATA port, includes 2.5" drive bay (2.5-inch SATA bay via ZIF connector)	1 SATA port, includes 2.5" drive bay (2.5-inch SATA bay via ZIF connector)	1 SATA port, includes 2.5" drive bay (2.5-inch SATA bay via ZIF connector)
Card Reader	No Card Reader	No Card Reader	No Card Reader
Headphone Jack	3.5mm combo audio	3.5mm combo audio	3.5mm combo audio
Fanless	No	No	No
VESA Mount	Yes	Yes	Yes
In the Box	Power adapter, VESA mount bracket, HDMI cable, user manual	Power adapter, VESA mount bracket, HDMI cable, user manual	Power adapter, VESA mount bracket, HDMI cable, user manual
Expandability	2x SO-DIMM DDR4 slots (max 64GB), 1x M.2 2280 PCIe 3.0, 1x 2.5-inch SATA bay	2x SO-DIMM DDR4 slots (max 64GB), 1x M.2 2280 PCIe 3.0, 1x 2.5-inch SATA bay	2x SO-DIMM DDR4 slots (max 64GB), 1x M.2 2280 PCIe 3.0, 1x 2.5-inch SATA bay

Two RAM slots, an M.2 slot, and a SATA bay in a metal shell

The enclosure measures just over four and a half inches square and about an inch and a half thick, so it hides behind a monitor or slips into a tight entertainment center. A mesh ventilation pattern runs across the top and sides, drawing air over the internal components without an aggressive fan profile. The body is solid aluminum rather than plastic, and the VESA bracket in the box lets it live behind the display instead of on the desk. The front panel carries a power button, a 3.5mm audio jack, and two of the four USB 3.0 ports, keeping a thumb drive or headset within reach.

The main AMD Ryzen 7 3750H provides four cores and eight threads with a boost clock up to 4.0GHz, paired with integrated Radeon RX Vega 10 graphics; the budget variant drops to the dual-core Ryzen 3 3200U with Vega 3. Either combination handles office productivity, web browsing, video conferencing, and 4K video playback, though video editing or 3D rendering will expose the limits of these Zen+ chips. The integrated graphics cover retro gaming and older titles, and modern games stay out of reach even at reduced settings. Both PhilsComputerLab and CNX Software trace weak graphics results to the single-channel memory the system ships with; adding a second matching stick enables dual-channel mode and lifts GPU performance.

Two HDMI 2.0 ports drive 4K output at 60Hz on both displays at once. The USB-C port offers DisplayPort alternate mode for a potential third 4K display, though that output is less dependable than the HDMI pair. Four USB 3.0 Type-A ports take keyboards, mice, external drives, and other peripherals. Gigabit Ethernet covers wired networking, and the Intel Wireless-AC 7265 card supplies WiFi 5 and Bluetooth 4.2.

Reviewer Insights

Every hands-on review of the SER3 covers the Ryzen 7 3750H configuration, the version that shipped first. The budget Ryzen 3 3200U build uses the same chassis and runs slower across the board.

TechTablets on the unlocked BIOS and the power limit

TechTablets tested the Ryzen 7 3750H SER3 and found it delivered solid build quality with user-upgradeable internals. The fully unlocked BIOS drew the most attention, with the note that “it’s a completely unlocked BIOS, this is great.” On size, the review adds that “it can literally fit in the palm of my hand.” He also pointed out that the conservative power limit in the default configuration holds the chip back from its full performance.

Chigz Tech Reviews on triple 4K output and light gaming

Chigz Tech Reviews praised the SER3’s premium metal construction and versatile connectivity, calling it “basically a full PC experience in a mini compact size.” That review treats the triple 4K display capability as the standout for productivity users and points to upgradeable RAM and storage as the reason the machine stays useful. Light gaming tests showed acceptable 1080p performance in older titles like GTA V at 30 FPS, though more demanding emulation tasks like Nintendo Switch games struggled to run smoothly.

PhilsComputerLab on single-channel memory and GPU clocks

PhilsComputerLab noted that the single-channel memory configuration from the factory significantly hampers integrated GPU performance. The reviewer observed GPU clock speeds dropping to around 700MHz during gaming instead of the rated 1400MHz, and concluded that “gaming performance unfortunately was disappointing.” He framed the buying decision as “there’s no such thing as a bad mini PC, only a bad price,” suggesting the SER3 makes sense at the right discount but benefits greatly from a memory upgrade to dual-channel configuration.

NotebookCheck on size, weight, and intended use

NotebookCheck casts the SER3 as an option targeting HTPC applications and basic productivity tasks. That review confirmed dimensions of 126 x 113 x 40mm and a unit weight of just 492 grams, making it highly portable, and points the machine at web browsing and 4K video streaming rather than demanding workloads.

CNX Software on BIOS tweaks and dual-channel gains

CNX Software concluded that “the SER3’s full potential can only be reached with a couple of BIOS tweaks.” Raising power limits via software tools and moving to dual-channel memory pushed 3DMark Fire Strike from 1893 to 3165 points in that testing. The same review verified Linux compatibility and measured idle power consumption of just 5.7 watts under Windows.

A cheap, upgradeable Windows box for light work

The metal chassis and the expansion slots are the reasons to buy, and the Zen+ silicon sets the ceiling. The AMD Ryzen 7 3750H covers office productivity, media playback, and web browsing, and the budget Ryzen 3 3200U build handles those same lighter tasks for less. Anyone who buys one should budget for a second SO-DIMM: dual-channel memory moved 3DMark Fire Strike from 1893 to 3165 points in CNX Software’s testing, and the slot is already there.

That makes it a fit for a home office, an HTPC, digital signage, or any spot where a tower will not fit and the VESA bracket will. Video editing, 3D modeling, and modern gaming belong on something else, such as the Beelink SER5 or a machine built on Ryzen 5000 or 7000 series silicon.

The budget Ryzen 3 3200U build, listed around $229 with 16GB of RAM and a 500GB SSD, is a ready-to-use Windows 11 Pro system for light needs. Starry Hope’s Mini PC Comparison Chart lines its specifications up against the rest of the catalog.

Frequently Asked Questions