GMKtec NucBox M3 Mini PC Intel 12th Core TM i5 12450H

The GMKtec NucBox M3 is a compact mini PC powered by a 12th Gen Intel Core i5-12450H processor with 8 cores and 12 threads. It supports up to 64GB DDR4-3200 RAM, dual M.2 storage (NVMe and SATA), triple displays via dual HDMI and USB-C, WiFi 6, 2.5GbE LAN, and runs Windows 11 Pro. Dimensions 114x106x42.5mm, weight 361g.

Pros

  • +8-core i5 processor up to 4.4GHz
  • +Triple 4K display support
  • +Dual-channel DDR4 up to 64GB
  • +Dual M.2 storage slots
  • +Wi-Fi 6 and Bluetooth 5.2
  • +2.5G Ethernet

Cons

  • −USB-C lacks PD charging
  • −No eGPU support via USB-C
  • −No SD card slot
  • −Only PCIe 3.0 SSD support
  • −No Thunderbolt or USB4

Full Specifications

ModelGMKtec NucBox M3
Processor12th Gen Intel® Core™ i5 Processor, 8 Cores, 12 Threads Intel 7 Process Max Turbo Frequency up to 4.4GHz 12MB L3 Cache TDP 45W
Processor ModelIntel® Core™ i5-12450H Processor
Processor TechnologyIntel 7
Processor PackageFCBGA1744 Package, 50 × 25 mm
GraphicsIntel® Graphics for 12th Gen Intel® Processors 48 Execution Units Up to 1.2GHz
Memory2 × SO-DIMM Slots Dual-Channel DDR4-3200 Memory 16GB / 32GB configurations Supports up to 64GB
Memory Slots2 slots, max 64GB
StorageM.2 2280 NVMe PCIe 3.0 SSD 512GB / 1TB options
Storage Expansion1 × M.2 2280 PCIe SSD slot, supports up to 2TB 1 × M.2 2242 SATA SSD slot, supports up to 2TB
Display SupportTriple display output via Dual HDMI + USB Type-C Supports up to 4096 × 2160 resolution
WirelessWi-Fi 6 (Realtek 8852BE, up to 1201Mbps) Bluetooth 5.2 2.5G Ethernet LAN (Intel i225)
BluetoothBluetooth 5.2
Ethernet2.5G Ethernet LAN (Intel i225)
I/O PortsUSB-A: 3 × USB 3.2 Gen2 + 1 × USB 2.0 HDMI: 2 × HDMI (up to 4096 × 2160 @ 60Hz) USB-C: 1 × Type-C (DisplayPort / Data only, 5Gbps) Audio: 1 × 3.5mm CTIA Audio Jack LAN: 1 × RJ45 2.5G Ethernet Power: 1 × DC IN (5.5 / 2.5mm)
Dimensions114 × 106 × 42.5 mm
Weight361 g
Color / FinishGray
Form FactorMini PC
PowerBuilt-in coin cell battery DC Power Adapter 20V / 5A, 100W
Operating SystemWindows 11 Pro / Linux Supported
Operating System OptionsUS/JP, EU, UK
Audio1 × 3.5mm CTIA Audio Jack
Expansion Slots1 × M.2 2280 PCIe SSD slot, 1 × M.2 2242 SATA SSD slot
Environmental0°C – 50°C
CertificationsCE, FCC, CCC, RoHS
Package ContentsUser Manual Warranty Card Power Adapter VESA Mount Bracket HDMI Cable
FeaturesThe USB Type-C port supports data transfer and video output only. It does not support PD charging or external GPU connection. | 13 Languages Supported (Default English): Simplified Chinese, Traditional Chinese, English, French, Thai, Spanish, Korean, Japanese, German, Hebrew, Russian, Portuguese, Arabic
OverviewGMKtec NucBox M3 Mini PC powered by Intel Core TM i5-12450H processor (8 cores / 12 threads, up to 4.4GHz). Featuring Intel UHD graphics, DDR4-3200 memory up to 64GB, M.2 NVMe SSD storage with additional M.2 SATA expansion, WiFi 6, 2.5GbE LAN, and triple-display support via dual HDMI and USB-C. A compact yet powerful mini desktop designed for office productivity, multitasking, home computing, and professional workloads. Ships with Windows 11 Pro support and global warranty.
Warranty1-Year Limited Warranty
ConfigurationsBarebone (No DDR & SSD & OS) | 16GB DDR4 3200 MT/s + 512GB M.2 PCIe 3.0 M.2 2280 | 32GB DDR4 3200 MT/s + 1TB M.2 PCIe 3.0 M.2 2280

Specs on this page may not be 100% accurate — please verify with the manufacturer.

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