1. Introduzione
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your NICGIGA 6 Port 2.5G Unmanaged Ethernet Switch. This device is designed to enhance network performance by providing high-speed connectivity for various devices in home and office environments.
The NICGIGA 6 Port 2.5G Unmanaged Ethernet Switch features 4 x 2.5 Gigabit Ethernet ports and 2 x 10G SFP+ ports, offering flexible and high-bandwidth connectivity options. Its unmanaged design ensures plug-and-play functionality without requiring complex configuration.
2. Produttu Finituview
2.1 Funzioni chjave
- 6 Port High-Speed Connectivity: Includes 4 x 2.5G Base-T Ethernet ports and 2 x 10G SFP+ ports.
- Unmanaged Plug and Play: Requires no configuration for immediate use.
- Disegnu senza ventilatore: Ensures silent operation, suitable for noise-sensitive environments.
- Metallo durevule Casing: Provides robust protection and efficient heat dissipation.
- Ampia cumpatibilità: Supports 10/100/1000/2500Mbps on RJ45 ports and 1G/2.5G/10G modules on SFP+ ports.
- Capacità di commutazione di 60 Gbps: Handles high data traffic efficiently.
- Prutezzione da i fulmini 4KV: Enhances device durability against electrical surges.
2.2 Cuntenuti di u pacchettu
- NICGIGA 6 Port 2.5G Unmanaged Ethernet Switch (Model: S25-0402-N)
- Adattatore di alimentazione (12V DC)
- Manuale d'usu
2.3 Disposizione fisica

Figura 1: Disposizione di u pannellu frontale è posteriore
This image displays the front and rear panels of the switch. The front panel features four 2.5G RJ45 ports (labeled 1-4) and two 10G SFP+ ports (labeled 5-6), along with Link/Act and 2.5G Link LEDs for each RJ45 port, and PWR LEDs. The rear panel shows the 12V DC power input.
- Ports 1-4 (RJ45): 2.5G Base-T Ethernet ports, compatible with 10/100/1000/2500Mbps.
- Ports 5-6 (SFP+): 10G SFP+ ports, compatible with 1G/2.5G/10G SFP/SFP+ modules (modules not included).
- Indicatori LED:
- Link/Act (Yellow): On for link, blinking for data activity.
- 2.5G Link (Green): On when connected at 2.5Gbps.
- PWR: Indica u statu di putenza.
- Input di putenza: 12V DC power jack.
3. Setup è Installazione
The NICGIGA 6 Port 2.5G Unmanaged Ethernet Switch is designed for simple plug-and-play installation. No software configuration is required.
3.1 Cunnessione di l'interruttore
- Connect Power: Plug the provided 12V DC power adapter into the switch's power input port and then into a standard electrical outlet. The PWR LED should illuminate.
- Cunnette i Dispositivi:
- For RJ45 devices (e.g., computers, NAS, WiFi 6 APs): Connect standard Ethernet cables from your devices to any of the 2.5G RJ45 ports (1-4) on the switch.
- For SFP+ devices (e.g., servers, other switches): Insert compatible SFP/SFP+ modules (not included) into the 10G SFP+ ports (5-6) and connect appropriate fiber optic or DAC cables to your devices.
- Verificate a cunnessione: Once devices are connected, observe the Link/Act and 2.5G Link LEDs on the front panel. A solid yellow Link/Act LED indicates a successful link, and a blinking yellow LED indicates data activity. A solid green 2.5G Link LED indicates a 2.5Gbps connection.

Figure 2: Basic Setup Diagram
This diagram illustrates the straightforward setup process: connecting the power adapter, then connecting various network devices like a computer, NAS, and router to the switch's ports.
4. Funziunamentu di l'interruttore
As an unmanaged switch, the NICGIGA 6 Port 2.5G Ethernet Switch operates automatically once connected. There are no software settings or configurations required.
4.1 Indicatori LED
The LEDs on the front panel provide visual status of the switch and its connections:
- LED PWR:
- On: L'interruttore hè alimentatu.
- Off: L'interruttore hè spento o ùn riceve micca alimentazione.
- Link/Act LED (Yellow, Ports 1-4):
- On: Un ligame di rete validu hè statu stabilitu.
- Lampendu: I dati sò trasmessi o ricevuti attraversu u portu.
- Off: No network link is detected.
- 2.5G Link LED (Green, Ports 1-4):
- On: The port is operating at 2.5Gbps.
- Off: The port is operating at 10/100/1000Mbps.
- Link/Act LED (Ports 5-6): Similar to RJ45 ports, indicates link status and activity for SFP+ connections.
4.2 Applicazioni

Figure 3: Typical Application Scenarios
This image demonstrates how the switch can be integrated into a network to connect various high-bandwidth devices such as a 2.5G NAS, 4K video streaming devices, WiFi 6 access points, gaming PCs, and laptops with 2.5G Ethernet adapters.
The switch is suitable for various high-bandwidth applications, including:
- Connecting 2.5G Network Attached Storage (NAS) for faster data transfers.
- Supporting 4K video streaming and editing workflows.
- Providing high-speed connections for gaming PCs.
- Uplinking to WiFi 6 Access Points for enhanced wireless performance.
- Expanding network capacity in small offices or home labs.
Video 1: 2.5Gb Ethernet Switch Unmanaged Overview
Stu video furnisce una visione sopraview of the NICGIGA 2.5Gb Ethernet Switch, demonstrating its features such as 2.5Gb RJ45 ports, 10Gb SFP+ uplink, metal body for heat dissipation, plug-and-play functionality, and multi-device parallel data transfer capabilities.
5. Mantenimentu
To ensure optimal performance and longevity of your NICGIGA Ethernet Switch, follow these maintenance guidelines:
- Placement: Place the switch in a well-ventilated area, away from direct sunlight, heat sources, and excessive moisture. Ensure adequate airflow around the device.
- Pulizia: Regularly clean the exterior of the switch with a soft, dry cloth. Avoid using liquid or aerosol cleaners, which may damage the device.
- Gestione di Cable: Mantene i cavi di rete urganizati è senza pieghe o pieghe eccessive per impedisce a degradazione di u signale.
- Alimentazione elettrica: Use only the original power adapter provided with the switch.
- Firmware: As an unmanaged switch, firmware updates are generally not applicable.
6. Risoluzione di prublemi
If you encounter issues with your NICGIGA Ethernet Switch, refer to the following troubleshooting steps:
6.1 Nisun putere
- Verificate a cunnessione di l'energia: Assicuratevi chì l'adattatore di corrente sia cunnessu currettamente à l'interruttore è à una presa elettrica funzionale.
- Verificate a presa di corrente: Pruvate a presa elettrica cù un altru apparechju per cunfirmà ch'ella furnisce energia.
- Adattatore di putenza: Ensure you are using the correct 12V DC power adapter supplied with the switch.
6.2 No Link Light
- Cunnessione di cable: Ensure the Ethernet cable is securely plugged into both the switch port and the connected device.
- Integrità di u cable: Test the Ethernet cable with another device or replace it to rule out a faulty cable.
- Status di u dispusitivu: Assicuratevi chì u dispusitivu cunnessu (per esempiu, urdinatore, router) sia accesu è chì u so adattatore di rete sia attivatu.
- Compatibilità portu: While the RJ45 ports are adaptive, ensure the connected device's network card is functioning correctly. For SFP+ ports, verify that the SFP/SFP+ module and cable are compatible and correctly installed.
6.3 Velocità di rete lenta
- Qualità di Cavu: Use high-quality Ethernet cables (Cat5e or higher for Gigabit, Cat6a or higher for 2.5G/10G) to ensure optimal performance.
- Capacità di u dispusitivu: Verify that your connected devices (network cards, NAS, router) support 2.5G or 10G speeds. The 2.5G Link LED should be green for 2.5Gbps connections on RJ45 ports.
- Congestione di a rete: High network traffic from other devices might affect overall speed.
- Modulu SFP+: For SFP+ ports, ensure the installed module supports the desired speed (1G, 2.5G, or 10G).
7. Specificazioni
| Feature | Descrizzione |
|---|---|
| Numero di mudellu | 6 Port | 4x 2.5G + 2x 10G SFP+ (S25-0402-N) |
| Marca | NICGIGA |
| Numero di Porti | 6 |
| Porti RJ45 | 4 x 2.5G Base-T (10/100/1000/2500Mbps adaptive, Auto MDI/MDIX) |
| Porti SFP + | 2 x 10G SFP+ (Compatible with 1G/2.5G/10G SFP/SFP+ modules) |
| Capacità di cambià | 60 Gbps |
| Rate di trasferimentu di dati | 2.5 Gigabits Per Second (per RJ45 port) |
| Voltage | 12 Volts (DC) |
| Cunsumu d'energia | Typically low (fanless design) |
| Cooling | Fanless, passive cooling via metal casing |
| Temperature di funziunamentu | -10 °C à 50 °C |
| Prutezzione di fulmini | 6KV |
| Dimensioni | 5.43 x 3.82 x 3.31 inch (Dimensioni di u pacchettu) |
| Pesu di l'articulu | 14.4 once |
| Opzioni di muntatura | Scrivania / Muru |
8. Garanzia è Support
NICGIGA products are designed for reliability and performance. For warranty information and technical support, please refer to the official NICGIGA websitu o cuntattate direttamente u so serviziu clienti. Conservate a vostra ricevuta d'acquistu per e richieste di garanzia.
Per più assistenza, pudete visità u NICGIGA Store on Amazon.





