PCBuilder CUBE Mini PC – Intel Core 3-100U, 16GB DDR5, 512GB SSD, Windows 11 Pro

If your worksite runs on a generator, a solar array, or whatever's left in the battery bank after the satellite terminals had its share, a standard desktop tower is a liability — most pull 65 to 150W just to idle. The PCBuilder CUBE is a full Windows 11 Pro PC that draws just 15W, small enough to fit in one hand (13 x 12.7 x 4.7cm) and VESA-mountable straight onto the back of a monitor, so it takes up no more power or space than it has to.
 
Under that low draw is a genuinely capable machine: an Intel Core 3-100U processor (6 cores, 8 threads, up to 4.70GHz), 16GB of DDR5 memory (expandable to 96GB), and a 512GB Gen3 NVMe SSD with a second empty M.2 slot if you need more storage down the line. It's enough to run logging software, comms management tools, mapping and GIS applications, or general office work from a remote camp, research station, farm, or vessel without needing a full rack of equipment.
Connectivity is built for sites where the nearest fibre line isn't close: Intel Wi-Fi 6, Bluetooth 5.2, and dual 2.5Gbps Ethernet ports for wiring into a local network or satellite router. Display output covers DisplayPort (4K@144Hz), HDMI 2.1 (4K@60Hz), and a USB4 Type-C port capable of 8K@60Hz — enough to run a full multi-monitor control setup for comms, monitoring, or logging from one small box.
 
Built in-house by PCBuilder's technicians and shipped in protective foam packaging, the CUBE carries a 2-year warranty and a Kensington lock slot, worth having in a shared site office or vehicle where equipment security matters.
 
Key Features
Just 15W power draw — runs far longer than a standard desktop on solar, battery, or inverter power at a remote site
Intel Core 3-100U — 6 cores, 8 threads, up to 4.70GHz — enough for logging, mapping, comms management, and office work
16GB DDR5 4800MHz (1x16GB), expandable to 96GB across 2 SO-DIMM slots
512GB Gen3 M.2 NVMe SSD with a second free M.2 PCIe 4.0 slot for extra storage
Wi-Fi 6 + Bluetooth 5.2, plus dual 2.5Gbps Gigabit Ethernet ports for local network or satellite router wiring
Multi-display support — DisplayPort (4K@144Hz), HDMI 2.1 (4K@60Hz), USB4 Type-C (8K@60Hz) — extend or mirror up to 3 screens
VESA mountable (100/75mm bracket included) — fits behind a monitor in a tight cabin, container office, or vehicle
Windows 11 Pro pre-installed
2-year warranty, Kensington lock slot for shared or unattended site setups
 
Full Specifications 
Category
Spec
CPU
Intel Core 3-100U, 6 cores/8 threads, 10MB cache, up to 4.70GHz
GPU
Intel Graphics
Memory
16GB DDR5 4800MHz SO-DIMM (1x16GB installed), 2 slots, expandable to 96GB @ 5200MHz
Storage
512GB Gen3 M.2 NVMe SSD; 2x M.2 PCIe 4.0 NVMe slots total
Wireless
Intel Wi-Fi 6 (802.11 a/b/g/n/ac/ax), Bluetooth 5.2
Ports (front)
3.5mm AUX (line-out/mic-in), 1x USB4 Type-C (40Gbps, 8K@60Hz), 2x USB3.2 (10Gbps)
Ports (rear)
2x USB3.2 (10Gbps), 1x DisplayPort (4K@144Hz), 1x HDMI 2.1 (4K@60Hz), 2x RJ45 Gigabit Ethernet (2.5Gbps), 1x DC power
VESA mount
Yes, 100/75mm bracket included
Power
AC input 100-240V (50/60Hz), DC output 65W (19V/3.42A), 15W TDP
Security
Kensington lock slot
Colour / material
Black, PC & ABS housing
Operating temperature
0°C to 40°C
Dimensions / weight
13 x 12.7 x 4.7cm, 470g
OS
Windows 11 Pro
Warranty
2 years
In the box
PC unit, AC adapter, VESA mounting bracket, M4 screws x4, M3 screws x2, user manual
 
FAQ 
How much power does the PCBuilder CUBE mini PC use? It's rated at 15W TDP, far below a typical desktop tower's 65-150W — well suited to running from a solar setup, battery bank, or small inverter at a remote site.
Can the PCBuilder CUBE run alongside satellite communication equipment on limited power? Its 15W draw and 65W max adapter output make it a much lighter load on a site's power budget than a standard desktop, though you should size any solar or battery system to your full equipment load, including your satellite terminal.
How much storage and RAM does the PCBuilder CUBE have? It ships with a 512GB Gen3 NVMe SSD (with a second empty M.2 slot for expansion) and 16GB of DDR5 memory, expandable up to 96GB across its two SO-DIMM slots.
Can the PCBuilder CUBE connect to a satellite router or local network? Yes — it has dual 2.5Gbps Gigabit Ethernet ports plus Wi-Fi 6 and Bluetooth 5.2 for wired or wireless connectivity.
Is the PCBuilder CUBE suitable for use in a remote cabin, container office, or vehicle? Its compact size (13 x 12.7 x 4.7cm) and VESA mounting bracket let it fit behind a monitor in tight spaces, and its 0°C to 40°C operating range covers most field conditions in South Africa.
Does the PCBuilder CUBE come with a warranty? Yes, it carries a 2-year warranty.