The Kamrui AMD Ryzen 7 3750H Mini PC delivers desktop-level performance in a compact 4.3×4.1×1.9-inch chassis. With a 4-core/8-thread CPU, Radeon RX Vega 10 graphics, dual 4K support, and upgradable RAM/storage, it handles gaming, content creation, and multitasking efficiently. Priced under $400, it’s a cost-effective solution for users seeking high performance in small-form-factor computing.
Can the Cooling System Handle Sustained Workloads?
Kamrui’s hybrid cooling combines a vapor chamber with a 7-blade 5,200 RPM fan. Under load, noise levels measure 42 dBA – quieter than competing NUCs. The 3D fin stack design increases heat dissipation surface area by 37% compared to traditional solutions. Stress tests show 2.8% thermal throttling after 90 minutes of continuous use, outperforming similar mini PCs by 15%.
The vapor chamber technology uses phase-change principles to distribute heat more evenly across the heatsink. This design proves particularly effective during GPU-intensive tasks where localized hotspots typically form. Engineers conducted 72-hour burn-in tests showing consistent cooling performance degradation of only 4% compared to 12-15% in competing air-cooled models. Users can monitor thermal performance through the built-in Kamrui Dashboard software, which provides real-time temperature readouts for CPU, GPU, and SSD components.
| Cooling Type | Noise Level | Max Temp | Throttle Time |
|---|---|---|---|
| Vapor Chamber | 42 dBA | 81°C | 2.8% |
| Traditional Copper | 47 dBA | 89°C | 17.3% |
How Does Upgradeability Compare to Competing Mini PCs?
The tool-free chassis design enables RAM/SSD swaps in under 90 seconds. Support for 2280/2260/2242 SSD lengths accommodates various storage configurations. Unlike many competitors, it maintains dual drive functionality even when using both M.2 and 2.5″ SATA slots. BIOS-level overclocking permits RAM speed adjustments up to 3200MHz, a feature typically reserved for gaming laptops.
Upgrade flexibility extends beyond basic component swaps. The system supports RAID 0/1 configurations across M.2 NVMe drives, enabling users to create striped arrays for faster data access or mirrored setups for redundancy. Unique among mini PCs in this price range, Kamrui provides dedicated mounting points for 15mm-thick 2.5″ drives rather than just supporting slim 7mm variants. Technical reviewers have successfully installed 8TB of storage (2x4TB NVMe + 1x8TB HDD) in stress tests, though official specifications list 4TB as the maximum supported capacity.
| Component | Supported Specs | Upgrade Time |
|---|---|---|
| RAM | DDR4-3200 (64GB max) | 45 seconds |
| Storage | PCIe 3.0 x4 NVMe | 90 seconds |
“Kamrui’s implementation of the 3750H redefines mini PC expectations. The 35W continuous PL1 sustainment – unusual in this form factor – enables desktop-replacement viability. Their thermal solution’s 0.08°C/W thermal resistance rating matches some gaming laptops. The dual Ethernet + triple display output configuration makes this a compelling edge computing solution for digital signage applications.”
– Mini PC Hardware Analyst, TechTesters International
- Can this mini PC run dual 4K monitors at 60Hz?
- Yes, through HDMI 2.0b and DisplayPort 1.4 outputs, it supports dual 4K@60Hz displays simultaneously. The USB-C port can drive a third 4K@30Hz monitor using DisplayPort Alt Mode.
- Is the RAM pre-installed or user-configurable?
- The base model ships with 8GB DDR4-2400 (1x8GB), leaving one SO-DIMM slot empty. Users can upgrade to dual-channel 64GB (2x32GB) without voiding the warranty.
- Does it support Windows 11 out of the box?
- All units ship with Windows 11 Pro pre-activated. The TPM 2.0 module and Secure Boot are enabled by default, meeting Microsoft’s system requirements.