When you're wiring an industrial networking fieldbus, the switch is the point where cabling, power, and traffic all meet. Getting the right one means balancing voltage range, port speed, cabinet conditions, and what you want to spend. These two 8-port industrial Ethernet switches sit at opposite ends of that trade-off: the N-TRON 708TX at $159.99 and the PUSR 5/8 Ports industrial gigabit switch at $27.99.
Quick Verdict
If your budget is tight and your fieldbus devices can use gigabit ports, the PUSR USR-ISG/ISF is the practical pick: it's unmanaged, compact, and carries the IP40 and wide-temperature features that matter in a control cabinet. If you're working in a 10-30VDC Ethernet/IP environment and want a switch that was removed from an industrial setting, tested, and confirmed working, the N-TRON 708TX is worth the roughly $132 price gap. The decision really comes down to whether you're building fresh or replacing in an existing control network.
Comparison at a Glance
| Product | Price | Condition | What Stands Out |
|---|---|---|---|
| N-TRON 708TX 8-Port Industrial Ethernet Switch | $159.99 | New - Open box | 10-30VDC, Ethernet/IP, industrial-grade switch |
| PUSR 5/8 Ports Industrial Gigabit Ethernet Switch | $27.99 | New | Gigabit ports, DC 9.6-60V, IP40, DIN-rail, redundant power |
Where Each Product Wins
The N-TRON 708TX is the stronger fit when your control network is already built around 10-30VDC and Ethernet/IP. It gives you a tested switch from an industrial environment, with an open-box condition that makes it a practical option for an existing panel.
The PUSR USR-ISG/ISF wins on price, port speed, and power flexibility. Its 10/100/1000Mbps ports give you gigabit throughput, and the wider DC 9.6-60V input range plus redundant power and IP40 protection make it easy to drop into a compact DIN-rail cabinet.
Product Notes
N-TRON 708TX 8-Port Industrial Ethernet Switch (10-30VDC)
This switch is described as new open-box, removed from an industrial environment, tested, and working. That makes it a reasonable option if you need an additional 8-port switch for a 10-30VDC control panel without buying a sealed retail unit. The Ethernet/IP communication standard fits right into industrial automation networks that already speak that protocol. The main catch is that it comes without additional accessories, cables, or a power supply, so you'll need your own 10-30VDC source and Ethernet cabling on hand. It's also the higher up-front cost in this comparison, which means the PUSR is the easier choice if budget is the deciding factor.
PUSR 5/8 Ports Industrial Gigabit Ethernet Switch (USR-ISG/ISF)
The PUSR gives you gigabit Ethernet in a compact, unmanaged switch. Its industrial design includes IP40 protection, fanless cooling, redundant power, and a DC input range of 9.6-60V, so it can handle tougher cabinet conditions. The aluminum DIN-rail housing makes installation straightforward, and the wide temperature tolerance means it can live in environments where a more basic switch might struggle. The limitation is that the title refers to a 5/8-port option rather than a single fixed port count, so you need to match the physical unit to the number of connections you're planning. For a new fieldbus build on a budget, the PUSR is the more affordable starting point.
Final Choice by Use Case
Pick the PUSR USR-ISG/ISF when you're starting a new fieldbus cabinet and want gigabit speed, wide voltage input, and IP40 protection without spending much upfront. Pick the N-TRON 708TX when you're working with an existing 10-30VDC Ethernet/IP network and want a tested 8-port switch that slots into that environment. Both are legitimate options; they just answer different questions about power, speed, and budget.
