When you're choosing an industrial PC for SCADA and edge-control duties, the first decision isn't which CPU is faster; it's whether you want a complete machine or a buildable foundation. Two refurbished Dell systems frame that choice: the OptiPlex 7050 Micro and the Precision T7910 tower.
Quick verdict
The OptiPlex 7050 Micro is the complete, compact route. The Precision T7910 is the configurable, expandable tower route. Pick the OptiPlex if you value out-of-box convenience and a small footprint; pick the Precision if you already own components and need a tower that can grow.
At a glance
| Product | Price | Form Factor | Processor | RAM | Storage | Condition |
|---|---|---|---|---|---|---|
| Dell OptiPlex 7050 Micro 16GB RAM Intel I5 700GB Of Storage | USD 150.00 | Micro Form Factor (MFF) | Intel i5 | 16GB | 700GB | Used |
| Dell Precision T7910 Intel Xeon E5-2620 v3 6-Core 2.40GHz - NO RAM/ GPU/ HDD/ OS | USD 212.98 | Tower | Intel Xeon E5-2620 v3 6-Core 2.40GHz | None included | None included | Excellent - Refurbished |
Where each product wins
Dell OptiPlex 7050 Micro
- Ready to use out of the box with RAM and storage
- Micro Form Factor makes it easy to place in tight industrial settings
- Includes USB-C and DisplayPort in addition to HDMI and USB 3.1
Dell Precision T7910
- Workstation-class Xeon processing for heavier SCADA/server duties
- Tower form factor gives room for add-in cards and drive expansion
- Excellent refurbished condition with USB 2.0/3.0 and RJ-45
Product notes
Dell OptiPlex 7050 Micro 16GB RAM Intel I5 700GB Of Storage

At $150, the OptiPlex 7050 Micro delivers a fully populated base: Intel i5, 16GB RAM, and 700GB of storage in a chassis that sits close to a display or inside a control cabinet. The unit is used, factory wiped for its next owner, and the description notes it was tested and works, with the power cord included. That makes it the low-friction pick if you want to load SCADA client software and start integrating immediately. The practical limit is physical expansion: the Micro form factor is small, so you cannot install the multiple PCIe cards or extra drives a larger tower would accommodate. If your edge-control role is bounded and you value compactness, this is a strong fit.
Dell Precision T7910 Intel Xeon E5-2620 v3 6-Core 2.40GHz - NO RAM/ GPU/ HDD/ OS

The Precision T7910 is a bare tower waiting for parts. At $212.98, you get a six-core Xeon E5-2620 v3 running at 2.40GHz, USB 2.0/3.0 connections, RJ-45 networking, and a tower form factor with space to install your own GPU, storage, RAM, and operating system. As an excellent-condition refurbished unit, it gives you a solid workstation foundation without paying for components you may already own. The catch is obvious: it ships with no RAM, GPU, HDD, or OS, so you must source those before it can run. If you expect a ready-to-boot machine, this isn't for you; if you're building a SCADA server or workstation and want a Xeon base, the T7910 offers expansion headroom you won't get from a Micro chassis.
Final choice by use case
Choose the Dell OptiPlex 7050 Micro if you need a ready-to-run SCADA workstation, HMI, or edge controller in a space-saving chassis and you want a system that already includes RAM and storage. Choose the Dell Precision T7910 if you need a six-core Xeon tower you can populate with your own components, especially when your industrial setup demands add-in cards, larger storage, or a dedicated GPU. For most plug-and-play SCADA and edge-control installations, the OptiPlex is the quicker path; for custom workstation builds, the Precision gives you more room to grow. If your deployment is a compact plant-floor HMI, the OptiPlex's ready state saves setup time; if you're building a larger edge-control server with multiple cards, the Precision tower's expansion slots matter more.