When you're choosing an industrial PC for SCADA monitoring or edge control, the main tension is between bare-bones cost and ready-to-run convenience. Four used Dell systems cover a wide price spectrum, with the lowest-priced barebones unit at one end and a 6-core Xeon tower at the other.
Quick Take
These four systems range from $80 to $212.98. The two Embedded Box PCs share the same Intel Core i7 processor, but one is barebones-no RAM, no drive-while the other is configured with RAM, storage, and an operating system. The Precision T7910 is a tower workstation, and the OptiPlex 7050 Micro is a compact system with RAM already installed.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Dell Embedded Box PC 5000 (No HD/RAM) | $80.00 | |
| Dell Embedded Box PC 5000 (8GB RAM, 512GB SSD) | $200.00 | |
| Dell Precision T7910 Xeon E5-2620 v3 6-Core | $212.98 | |
| Dell OptiPlex 7050 Micro (i5, 16GB RAM) | $150.00 |
Decision Matrix
| If You Need... | Choose This |
|---|---|
| A barebones project at the lowest upfront cost | Embedded Box PC 5000 (Barebones) |
| A ready-to-run edge controller | Embedded Box PC 5000 (Equipped) |
| Workstation-class multi-threaded compute | Precision T7910 |
| A compact micro with RAM already installed | OptiPlex 7050 Micro |
Product Notes
Dell Embedded Box PC 5000 (No HD/RAM)

This is the barebones version of the Embedded Box PC 5000. It has an Intel Core i7-6820EQ running at 2.80 GHz, but it's sold without a hard drive or RAM. The BIOS is not locked, which makes it easier to install your own industrial image. It's a used SFF form factor, so it can sit in a compact enclosure. The obvious limitation is that you must supply DDR4 memory and a drive before it can do anything. If you already have compatible components, this is a low-cost way to build a custom SCADA edge gateway. If you need a working system out of the box, this is not the one to start with.
Dell Embedded Box PC 5000 (8GB RAM, 512GB SSD)

The ready-to-run version of the same platform includes 8GB RAM, a 512GB SSD, Windows 10 Pro, and a power supply, plus a 30-day warranty. The fanless design is a strong reason to choose it for dusty or vibration-prone industrial settings. It also has a broad set of connectivity options, including HDMI, VGA, DisplayPort, and multiple USB ports. The limitation is that it costs more than the barebones box and offers only 8GB of RAM, which may feel tight for heavier SCADA visualization. As a dedicated edge controller, though, it's a solid plug-and-play option.
Dell Precision T7910 Intel Xeon E5-2620 v3 6-Core

The Precision T7910 is a tower workstation rather than an embedded box. It has a 6-core Xeon E5-2620 v3 at 2.40GHz with hyper-threading, giving you 12 threads for data-heavy industrial workloads. It's listed in Excellent - Refurbished condition, and the tower form factor leaves room for expansion cards and drives. The trade-off is that it comes with no RAM, no GPU, no HDD, and no OS. You'll need to build out the entire system before using it. If you're assembling a high-throughput SCADA gateway or edge analytics box from spare parts, this delivers the most muscular processor in the group.
Dell OptiPlex 7050 Micro 16GB RAM Intel i5

The OptiPlex 7050 Micro is the smallest system here, and it already includes 16GB RAM. That's enough for lightweight SCADA HMIs or protocol conversion at the edge. It has a compact black micro form factor, an Intel i5 processor, and connections like HDMI, USB 3.1, USB-C, DisplayPort, and USB-A. The main limitation is that the maximum RAM capacity is 16GB, so there's no room to grow memory later. The storage capacity is inconsistent across the product details, so treat this as a RAM-included micro rather than a drive-size choice. For tight spaces where footprint matters more than raw compute, this is the unit to look at.
Final Recommendation by Use Case
For a low-cost SCADA gateway that you finish with your own parts, the barebones Embedded Box PC 5000 is the clear starting point. For a fanless edge controller that runs immediately, choose the equipped Embedded Box PC 5000. If you need multi-threaded workstation compute and already have memory, storage, and an OS, the Precision T7910 is the one to pick. And if you want a tiny footprint with RAM already installed, the OptiPlex 7050 Micro is the space-saving option.