Industrial IP40 5-Port Gigabit Ethernet POE Switch G0104i-P04 - Rugged

In this review the Industrial IP40 5-Port Gigabit Ethernet Switch G0104i-P04 is evaluated for rugged network deployments where reliability matters more than flashy extras. The reviewer finds it best suited for industrial and outdoor monitoring use thanks to its fanless aluminum shell, wide -40C to +85C operating range, and built-in PoE support. The single biggest reason to buy is its combination of a long-range SFP transceiver option and redundant power inputs that keep critical links online in harsh environments.

Key Features

• 5-Port Gigabit Switching: Four 10/100/1000Base-T ports with full and half duplex auto-negotiation provide flexible uplink and edge connections while maintaining gigabit throughput where needed.
• SFP Long-Range Option: The single SFP slot with a 20-km transceiver capability lets operators extend fiber links without adding media converters.
• Redundant Power Inputs: Dual 3P Phoenix terminal inputs support +48 to 55 VDC with overload and anti-reverse protection to minimize downtime from power faults.
• Industrial Durability: An IP40 aluminum shell and fanless thermal design deliver reliable heat dissipation and protection for deployments in harsh temperature ranges.
• DIN-Rail and Wall Mount: Flexible mounting on DIN-rail or wall makes it straightforward to install in cabinets, control rooms, and field enclosures.

Who It's For

The G0104i-P04 is aimed at network engineers and integrators who need a compact, hardened switch for industrial networks, intelligent transportation systems, and outdoor monitoring where wide temperature tolerance and PoE support are required. Its single SFP port and four gigabit copper ports make it suitable as an access switch for cameras, sensors, and small PLC clusters.

Those who need integrated power supplies, managed switch features like VLANs or QoS, or large aggregation capacity should look elsewhere; this model is an unmanaged, purpose-built industrial device focused on reliability and environmental tolerance rather than advanced management.

Pros & Cons

Pros

• Rugged, fanless aluminum housing and IP40 protection for harsh environments.
• Long-range 20-km SFP support lets you bridge fiber links without extra equipment.
• Dual DC power inputs with overload and anti-reverse protection improve uptime.
• Flexible DIN-rail or wall mounting simplifies installation in control cabinets.

Cons

• No built-in power supply is included, so a compatible +48 to 55 VDC source must be provided separately.
• Unmanaged feature set may be limiting for users who need advanced traffic control or monitoring.

Specifications

Model	G0104i-P04
Ports	4 x 10/100/1000Base-T, 1 x SFP slot
PoE Standard	802.3af/at supported
Power Input	Dual 3P Phoenix terminal, +48 ~ 55 VDC
Mounting	DIN-rail and wall mount
Operating Temperature	-40C to +85C
Protection	IP40, industrial ESD and lightning protection

Our Verdict

The G0104i-P04 is a practical choice for industrial and outdoor networks that require a compact, rugged PoE switch with fiber reach. It offers good value for installations that prioritize environmental tolerance and power redundancy over advanced management, provided the user supplies an appropriate DC power source.

Frequently Asked Questions

Does this switch include a power supply?
The unit does not include a power supply; it requires an external +48 to 55 VDC source connected to the dual 3P Phoenix terminals.

Can it run in extreme temperatures?
Yes, the switch is rated to operate from -40C to +85C and uses a fanless aluminum design for heat dissipation in harsh conditions.

Is the SFP transceiver included?
The product supports a 20-km SFP transceiver but the transceiver itself is provided with the switch model listing; verify the included module when ordering.