Beelink SER9 specifications and in-depth review

Beelink SER9

Manufacturer: Beelink

The Beelink SER9 is a compact Mini PC that fits into a Micro-ATX form factor while packing a notable set of specifications into a volume of just 814.66 cm³. Weighing 1,456 g and measuring 135 × 135 × 44.7 mm, it is designed for use cases where desk space is limited but computing headroom still matters. The unit ships with 64GB of DDR5 RAM running at 8,000 MHz, paired with a 2TB NVMe SSD for fast local storage, and supports up to 256GB of system memory across its two memory channels.

Processing is handled by a 12-core, 24-thread CPU with a base clock of 2 GHz per core, a turbo frequency of 5.1 GHz, a 15W TDP, and a combined 36MB of L2 and L3 cache. Graphics are managed by the integrated Radeon 890M, an RDNA 3.5-architecture GPU built on a 4nm process node, offering 1,024 shading units, 5.939 TFLOPS of floating-point performance, and support for up to four simultaneous displays via its HDMI 2.1 port and DisplayPort output. Connectivity is broad, covering Wi-Fi 6, Bluetooth 5.2, dual RJ45 Ethernet ports, a USB 4 40Gbps port, two USB 3.2 Gen 2 Type-A ports, and one USB 3.2 Gen 2 Type-C port, rounding out a well-equipped I/O set for a machine of this size.

Pros
  • The 2TB NVMe SSD offers substantial flash-based storage capacity for a Mini PC, reducing the need for external drives in day-to-day use
  • 64GB of DDR5 RAM running at 8,000 MHz provides a generous amount of system memory for a compact desktop unit
  • Dual RJ45 Ethernet ports allow simultaneous connection to two wired networks, which is a practical advantage for users who need network redundancy or segmentation
  • A USB 4 40Gbps port alongside two USB 3.2 Gen 2 Type-A ports and one USB 3.2 Gen 2 Type-C port gives the unit a well-rounded and fast peripheral connection set
  • Support for up to four simultaneous displays via multi-display technology makes the unit suitable for multi-monitor desktop setups
  • The Radeon 890M GPU with ray tracing support and DirectX 12 Ultimate compatibility extends graphical capability beyond basic integrated graphics use cases
Cons
  • The 15W TDP places a firm ceiling on sustained processor performance, which may become a limiting factor under prolonged heavy workloads
  • ECC memory is not supported, which reduces suitability for workloads where memory error correction is a priority
  • There is no external memory slot, so storage expansion beyond the built-in SSD requires alternative solutions
  • The clock multiplier is locked, removing any possibility of manual CPU frequency adjustment
  • Neither Thunderbolt 3 nor Thunderbolt 4 ports are available, limiting compatibility with Thunderbolt-specific peripherals and docking stations
  • A 3.5mm headset jack is absent, meaning users requiring combined headphone and microphone connectivity must rely on the AUX input alone or use USB-based audio solutions
Who is this for?

The Beelink SER9 is well suited to users who need a compact desktop workstation capable of handling demanding multitasking, given its 64GB of DDR5 RAM, 24-thread processor, and 2TB NVMe storage. Its support for up to four simultaneous displays and HDMI 2.1 output makes it a practical choice for multi-monitor productivity setups where desk space is limited. The dual RJ45 ports and Wi-Fi 6 support also make it a reasonable fit for home office or light network-intensive environments, while the Radeon 890M GPU with ray tracing and DirectX 12 Ultimate compatibility extends its appeal to users who occasionally engage in light graphical or media workloads.

Who is this NOT for?

Users who require sustained high-performance computing will find the 15W TDP a meaningful constraint, as it limits the processor's ability to maintain peak output over extended workloads such as video encoding or large-scale data processing. The absence of Thunderbolt 3 or 4 ports makes it a poor fit for professionals who rely on Thunderbolt-dependent peripherals such as high-speed external storage arrays or professional audio interfaces. Additionally, the locked clock multiplier and lack of ECC memory support mean the unit is not appropriate for users who need overclocking headroom or memory error correction, such as those running scientific computations or mission-critical server-adjacent tasks.

General info:

SSD storage capacity 2000GB
form factor Micro-ATX
Is an NVMe SSD
thickness 135 mm
height 44.7 mm
width 135 mm
weight 1456 g
volume 814.6575 cm³

The Beelink SER9 adopts a Micro-ATX form factor with dimensions of 135 × 135 × 44.7 mm and a total volume of 814.66 cm³, making it a compact unit that weighs 1,456 g. Storage is handled by a 2TB NVMe SSD, offering fast flash-based access without relying on traditional spinning media. Despite its relatively modest footprint, the chassis accommodates these components within a thickness of 135 mm, striking a balance between density and physical size.

CPU:

Thermal Design Power (TDP) 15W
CPU speed 12 x 2 GHz
turbo clock speed 5.1GHz
CPU threads 24 threads
Has integrated graphics
uses multithreading
L3 cache 24 MB
L2 cache 12 MB
L2 core 1 MB/core
L3 core 2 MB/core
clock multiplier 20
Has an unlocked multiplier
Supports 64-bit
CPU temperature 100 °C

The processor in the Beelink SER9 features 12 cores running at a base clock of 2 GHz each, with a turbo clock speed reaching up to 5.1 GHz, and supports multithreading for a total of 24 threads. It operates within a 15W TDP and has a maximum rated temperature of 100 °C, with a fixed clock multiplier of 20 that cannot be unlocked. Cache resources amount to 12 MB of L2 (1 MB per core) and 24 MB of L3 (2 MB per core), providing a reasonable buffer for data-intensive workloads. The CPU supports 64-bit processing and includes integrated graphics, while the clock multiplier remains locked, ruling out manual frequency tuning.

Graphics card:

floating-point performance 5.939 TFLOPS
GPU clock speed 400 MHz
GPU turbo 2900 MHz
texture rate 185.6 GTexels/s
pixel rate 92.8 GPixel/s
supports ray tracing
supports DLSS
PCI Express (PCIe) version 4
texture mapping units (TMUs) 64
shading units 1024
render output units (ROPs) 32
DirectX version DirectX 12 Ultimate
OpenGL version 4.6
OpenCL version 2.1
semiconductor size 4 nm
supported displays 4
Supports multi-display technology
Has Double Precision Floating Point (DPFP)
number of transistors 34000 million

The integrated GPU operates with a base clock of 400 MHz and a turbo frequency of 2,900 MHz, backed by 1,024 shading units, 64 texture mapping units, and 32 render output units, yielding a texture rate of 185.6 GTexels/s and a pixel rate of 92.8 GPixel/s. Floating-point performance sits at 5.939 TFLOPS, and the GPU is built on a 4nm process node housing 34,000 million transistors. It supports ray tracing, Double Precision Floating Point, and multi-display output across up to four screens simultaneously, while DLSS is not supported. API compatibility covers DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2.1, and the GPU connects via PCIe 4.

Memory:

RAM 64GB
RAM speed 8000 MHz
DDR memory version 5

The Beelink SER9 comes equipped with 64GB of DDR5 RAM running at a speed of 8,000 MHz, placing it firmly in the higher-bandwidth tier of system memory configurations available for compact desktop machines. DDR5 as the underlying memory standard brings with it the architectural improvements associated with that generation, and the 8,000 MHz operating frequency reflects a capable memory subsystem for a unit in this form factor.

Connectivity:

Wi-Fi version Wi-Fi 6 (802.11ax), Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
supports Wi-Fi
Has Bluetooth
Bluetooth version 5.2
USB 2.0 ports 1
USB 3.2 Gen 2 ports (USB-A) 2
USB 3.2 Gen 1 ports (USB-A) 0
USB 3.2 Gen 2 ports (USB-C) 1
USB 4 40Gbps ports 1
USB 4 20Gbps ports 0
USB 3.2 Gen 2x2 ports 0
USB 3.2 Gen 1 ports (USB-C) 0
Thunderbolt 4 ports 0
Thunderbolt 3 ports 0
DisplayPort outputs 1
HDMI version HDMI 2.1
HDMI ports 1
RJ45 ports 2
has an AUX input
has a socket for a 3.5 mm audio jack
has a VGA connector
Has S/PDIF Out port

Wireless connectivity is covered by Wi-Fi 6 (802.11ax) alongside backwards-compatible Wi-Fi 5 (802.11ac) and Wi-Fi 4 (802.11n) support, complemented by Bluetooth 5.2 for short-range peripherals. On the wired side, two RJ45 Ethernet ports provide dual-network capability, and the USB layout includes one USB 4 40Gbps port, two USB 3.2 Gen 2 Type-A ports, one USB 3.2 Gen 2 Type-C port, and one USB 2.0 Type-A port; there are no USB 3.2 Gen 1, Gen 2x2, or Thunderbolt 3 or 4 ports. Video output is handled by a single HDMI 2.1 port and one DisplayPort output, while VGA is absent. Audio connectivity includes an AUX input, though a 3.5mm headset jack and S/PDIF output are not present.

Benchmarks:

PassMark result 35142
PassMark result (single) 3872
Geekbench 6 result (multi) 13283
Geekbench 6 result (single) 2593

In standardized benchmark testing, the Beelink SER9 records a PassMark multi-thread score of 35,142 alongside a single-thread result of 3,872, reflecting the processor's throughput across both parallel and sequential workloads. Geekbench 6 results follow a similar pattern, with a multi-core score of 13,283 and a single-core score of 2,593, giving a consistent picture of the unit's computational capabilities across two widely used testing platforms.

Miscellaneous:

maximum memory amount 256GB
has an external memory slot
GPU architecture RDNA 3.5
Has air-water cooling
Supports 3D
Type Laptop, Desktop
Uses big.LITTLE technology
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
GPU execution units 16
GPU name Radeon 890M
Supports ECC memory
memory channels 2
RAM speed (max) 7500 MHz
Has NX bit
Uses flash storage

The Beelink SER9 uses a CPU classified for both laptop and desktop deployment and does not employ big.LITTLE heterogeneous core architecture. The integrated Radeon 890M GPU is built on an RDNA 3.5 architecture with 16 execution units, and the system supports stereoscopic 3D output. Memory can be scaled up to a maximum of 256GB across two channels, though ECC memory is not supported and the maximum rated RAM speed is 7,500 MHz; there is no external memory slot. Storage uses flash-based media, and the CPU includes NX bit support for hardware-level execution protection, with no air or water cooling system present. Supported instruction sets span MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, covering a broad range of extended processing capabilities.

Final Verdict

The Beelink SER9 presents a well-specified Mini PC that punches meaningfully above the typical expectations of its form factor, anchored by a 24-thread processor, a substantial 2TB NVMe SSD, and 64GB of DDR5 RAM that collectively support a wide range of productivity and light creative workloads within a remarkably compact footprint. Its multi-display capability, dual Ethernet ports, and USB 4 connectivity round out a connectivity profile that feels considered rather than compromised. That said, the 15W thermal envelope and the absence of Thunderbolt ports are real boundaries that will matter to specific user profiles, and those pushing sustained heavy workloads should weigh those constraints carefully. For users who need a space-efficient desktop with genuine multitasking headroom and flexible display support, the SER9 makes a credible and well-rounded case for itself.