For industrial PCs, SCADA stations, and edge-control roles, the key choice is whether you need a general-purpose Windows desktop with ample memory and storage or a compact fanless machine built around serial-connected equipment. The Dell Windows 11 Mini Desktop and Qotom Q305 take notably different routes: the Dell emphasizes desktop capacity and familiar workstation connections, while the Qotom emphasizes compact embedded connectivity.
Quick verdict
Pick the Dell Windows 11 Mini Desktop up to PC i7 8th, 32GB RAM, 1TB SSD, Built-In WiFi when a Windows 11-ready mini desktop, 32GB RAM, and a 1TB SSD are central to the job. At USD 282.00, it suits a control-room desk, office workstation, or productivity-oriented system where storage capacity and multiple display-oriented connections are useful.
Pick the Portable Desktop Mini PC Core Onboard Fanless Mini PC Qotom POS 4GB RAM 32GB SSD when the priority is a fanless compact computer with six COM ports and the lower USD 59.99 listed price. It is the more purpose-focused choice for serial-device, POS, embedded, firewall, VPN gateway, or IoT gateway roles.
At-a-glance comparison
| Decision point | Dell Windows 11 Mini Desktop | Qotom Q305 Fanless Mini PC |
|---|---|---|
| Listed price | USD 282.00 | USD 59.99 |
| Memory and storage | 32GB RAM and 1TB SSD in the title | 4GB RAM and 32GB SSD |
| Operating-system direction | Windows 11 in the title | No OS; supports Windows, pfSense, and Linux |
| Physical approach | Micro form factor desktop | Fanless mini PC |
| Connection emphasis | USB, DisplayPort, Ethernet, HDMI/VGA options, and audio | Four USB 3.0 ports, six COM ports, and RS-232/RS-485 setting |
The listed price range runs from USD 59.99 to USD 282.00, so the decision should start with required ports and computing capacity rather than treating these as interchangeable mini desktops.
Where each mini PC wins
Dell wins for desktop-style SCADA and productivity setups. Its stated 32GB RAM and 1TB SSD give it a different capacity profile from the Qotom's 4GB RAM and 32GB SSD. DisplayPort, Ethernet, USB, audio, and optional HDMI/VGA connections also make sense for a desk-based setup that may involve displays and everyday peripheral connections. Built-in Wi-Fi is part of the Dell title, with a Wi-Fi adapter also included in its package description.
Qotom wins for compact serial and embedded duties. The fanless Q305 combines six COM ports with RS-232/RS-485 configuration, plus support for a Wi-Fi module and a watchdog. Its stated use cases include network security appliances and edge computing/IoT gateway work, making it the more directly aligned option when serial equipment and a compact IPC-style role define the project.
Product notes
Dell Windows 11 Mini Desktop up to PC i7 8th, 32GB RAM, 1TB SSD, Built-In WiFi

The strongest reason to select this Dell is straightforward: it pairs a Windows 11 title with 32GB RAM and a 1TB SSD, a configuration aimed at heavier desktop multitasking than the Qotom's 4GB/32GB setup. Its micro form factor keeps the system compact while retaining USB 2.0, USB 3.0, DisplayPort, Ethernet, HDMI, VGA, and audio connections. HDMI and VGA adapters are also named among the accessories. This is the clearer fit for coding, web-based operations, remote work, light graphic design, and everyday productivity alongside a SCADA or monitoring desk. The limitation is its USD 282.00 listed price and used condition, which put it in a different purchasing tier from the Qotom.
Portable Desktop Mini PC Core Onboard Fanless Mini PC Qotom POS 4GB RAM 32GB SSD

The Qotom Q305 is the focused pick when serial connectivity matters more than desktop storage headroom. Its fanless mini-PC format, six COM ports, RS-232/RS-485 setting, watchdog, and stated support for Windows, pfSense, and Linux suit embedded, POS, network-security, and edge-gateway roles. The 32GB SSD and 4GB RAM establish a compact baseline, and the system supports DDR3L memory up to 8GB. It also has four USB 3.0 ports and a 2.5-inch SATA drive support option. Its constraint is equally clear: the included configuration has much less memory and SSD capacity than the Dell, and it is described as having no OS.
Final choice by use case
Choose the Dell for a Windows mini desktop that needs substantial stated memory and storage plus display-friendly connectivity. Choose the Qotom Q305 for fanless, serial-port-centered edge control, POS, or gateway work where six COM ports and the lower listed price are the deciding factors.