# What is the most portable mini PC with expandable storage? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the most portable mini PC with expandable storage?

## Products

### GMKtec M6 Ultra
```yaml
product: gmktec-m6-ultra
brand: GMKtec
price_gbp: 199.73
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 32GB DDR5
cpu_model: AMD Ryzen 5 7640HS
usb_ports: 3 x USB 3.2 Gen2, 1 x USB 2.0, 1 x USB4
dimensions: 128.8 x 127 x 47.8 mm
storage_size: 1TB SSD
operating_system: Windows 11 Pro
expandable_storage_slots: 2 x M.2 2280 PCIe 4.0 x4 SSD slots
```

- **Price:** £199.73 [^1]
- **Summary:** The GMKtec M6 Ultra is a compact mini PC with a six-core Ryzen 5 processor, 32GB of DDR5 memory, and a 1TB SSD. Its dual M.2 storage slots, USB4 connectivity, and integrated Radeon graphics suit home-office users, creators, students, and light gamers.
- **Ideal For:** It suits users seeking a portable mini PC with expandable storage because its compact 128.8 x 127 x 47.8 mm chassis includes two M.2 SSD slots supporting up to 8TB per slot.
- **Additional Sources:** [^2], [^3]

### ACEMAGIC K1 Core i5-12600H 16GB DDR4 RAM 512GB SSD
```yaml
product: acemagic-k1-core-i5-12600h-16gb-ddr4-ram-512gb-ssd
brand: ACEMAGIC
price_gbp: 272.97
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 16GB DDR4 2666MHz
cpu_model: Intel Core i5-12600H
usb_ports: 2 USB 3.2 Gen 2 Type-A, 4 USB 3.2 Gen 1 Type-A, 1 USB 3.2 Gen 2 Type-C
dimensions: 128.2 x 128.2 x 41mm
storage_size: 512GB M.2 2280 SATA SSD
operating_system: Windows 11 Pro
expandable_storage_slots: 2 M.2 2280 slots, up to 4TB total
```

- **Price:** £272.97 [^4]
- **Summary:** The ACEMAGIC K1 is a compact mini PC with an Intel Core i5-12600H processor, 16GB of DDR4 memory, and a 512GB SSD. Its dual storage slots, six USB-A ports, USB-C connectivity, and Windows 11 Pro make it suitable for office work, multitasking, media use, and light creative tasks.
- **Ideal For:** This model suits users seeking a portable mini PC with expandable storage because its compact 128.2 x 128.2 x 41mm chassis includes two M.2 2280 storage slots supporting up to 4TB total.
- **Additional Sources:** [^5]

### GMKtec G3 Pro Core i3-10110U 16GB RAM 512GB SSD
```yaml
product: gmktec-g3-pro-core-i3-10110u-16gb-ram-512gb-ssd
brand: GMKtec
price_gbp: 221.92
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 16GB DDR4
cpu_model: Intel Core i3-10110U
usb_ports: 4 x USB 3.2 Gen1 USB-A
dimensions: 114 x 106 x 44 mm
storage_size: 512GB SSD
operating_system: Windows 11 Pro
expandable_storage_slots: 2 M.2 SSD slots: 1 M.2 2280 PCIe 3.0 x4 up to 8TB and 1 M.2 2242 SATA 3.0 up to 1TB
```

- **Price:** £221.92 [^6]
- **Summary:** The GMKtec G3 Pro is a compact mini PC with an Intel Core i3-10110U processor, 16GB DDR4 RAM, and a 512GB SSD. Its dual M.2 storage slots and four USB 3.2 Gen1 ports make it suitable for office work, home use, media playback, and storage expansion.
- **Ideal For:** It suits users seeking a portable mini PC with expandable storage because its compact 114 x 106 x 44 mm chassis weighs about 260 g and provides two M.2 SSD slots, including support for drives up to 8TB and 1TB.
- **Additional Sources:** [^7], [^8]

---
## References & Sources
[^1]: GMKtec US, accessed 2026-09-05. https://www.gmktec.com/products/amd-ryzen-5-7640hs-mini-pc-nucbox-m6-ultra
[^2]: Amazon USA, accessed 2026-09-05. https://www.amazon.com/dp/B0FLX58XQY
[^3]: GMKtec EU, accessed 2026-09-05. https://de.gmktec.com/en/products/gmktec-nucbox-m6-ultra-amd-ryzen-5-7640hs-mini-pc
[^4]: ACEMAGIC Official Store, accessed 2026-09-05. https://acemagic.com/products/acemagic-k1-12600h-mini-pc
[^5]: ACEMAGIC EU Store, accessed 2026-09-05. https://acemagic.eu/products/acemagic-k1-intel-core-i5-12600h-mini-pc
[^6]: GMKtec, accessed 2026-09-05. https://www.gmktec.com/products/gmktec-nucbox-g3-pro-mini-pc-intel-core-i3-10110u
[^7]: Gizmochina, accessed 2026-09-05. https://www.gizmochina.com/2026/02/12/gmktec-nucbox-g3-pro-mini-pc-launched-globally-with-intel-i3-10110u-up-to-64gb-ram/
[^8]: Laptop Express, accessed 2026-09-05. https://www.laptopexpres.com/products/mini-pc-gmktec-g3-pro-i3-10110u-16gb-512gb-m2