When you're wiring an industrial networking fieldbus cabinet, the Ethernet switch is the piece that connects controllers, sensors, and HMIs. The choice often comes down to two very different approaches: buy a switch with a model number that matches your design docs exactly, or buy a switch with a spec sheet full of protections at a much lower price. That's exactly the trade-off here between the MOXA EDS-316 and the PUSR USR-ISG/ISF.
Quick verdict
If your project specification requires a MOXA EDS-316, the MOXA is the unit you need, and you'll pay a significant premium for that model match. For almost every other new install, the PUSR USR-ISG/ISF delivers far more documented industrial protections for a much smaller outlay, making it the practical pick when the budget matters.
Comparison table
| Consideration | MOXA EDS-316 | PUSR USR-ISG/ISF |
|---|---|---|
| Price | USD 549.94 | USD 27.99 |
| Price indicator | ||
| Ports | - | 5/8-port design |
| Speed | - | 10/100/1000Mbps |
| Switching type | - | Unmanaged |
| Enclosure / protection | - | Aluminum, IP40, -40°C to 85°C, redundant DC 9.6-60V, 6kV lightning protection |
| Mounting | - | DIN-rail |
Where each product wins
The MOXA EDS-316 wins when your panel drawing, approved vendor list, or machine design explicitly names that model. The EDS-316 part number is clearly identified, and a new unit with that designation removes any substitution review from your procurement process.
The PUSR USR-ISG/ISF wins on price and on the breadth of its listed industrial specs. You get a switch that tells you exactly what temperature range, surge protection, and power redundancy it can handle, and it costs far less than the MOXA. If you're starting from a clean slate, the PUSR is the easier box to justify.
Product notes
MOXA EDS-316
The MOXA EDS-316 is the model-specific choice in this pairing. It's a new MOXA industrial Ethernet switch with the EDS-316 designation clearly specified. That matters if your panel drawing or procurement list already calls for a MOXA EDS-316. At USD 549.94, it's the higher-priced option by a wide margin. The switch is identified as an industrial Ethernet switch, and the model number is the main distinguishing feature. If you need to match an existing installed base or a strict bill of materials, this unit gives you the exact model match. The limitation is the price: the PUSR delivers explicit industrial features at USD 27.99, so the MOXA is a significant premium unless model compliance is required.
PUSR USR-ISG/ISF
The PUSR USR-ISG/ISF is the low-priced spec pick. At USD 27.99, it offers a 5/8-port 10/100/1000Mbps unmanaged industrial Ethernet switch with IP40 aluminum housing, a -40°C to 85°C operating range, DC 9.6-60V redundant power input, and 6kV lightning protection. The DIN-rail mounting and fanless design make it easy to drop into a control cabinet. This switch is plug-and-play: just wire it up and let it operate without configuration. The limitation is that it's unmanaged, so you won't get VLANs, QoS, or traffic monitoring. If your network needs managed capabilities, the PUSR won't be sufficient, but for straightforward industrial connectivity it packs a lot of protection per dollar.
Final choice by use case
Choose the MOXA EDS-316 when the model number is non-negotiable in your design documentation. Choose the PUSR USR-ISG/ISF for a new build where you want explicit temperature, power, and surge protections without a large capital outlay. For most projects that allow either brand, the PUSR delivers more verifiable features for the money.
