Share a compatible 4G data connection at home or work
4G LTE Cat4N300 2.4 GHz Wi-FiNano SIM slot4× 10/100 Ethernet
The Mercusys MB115-4G EU combines an LTE Cat4 modem with N300 wireless networking and four Fast Ethernet ports. Insert a compatible Nano SIM with an active data plan, configure the operator settings where required, and share the connection with wired and wireless devices. A configurable LAN/WAN port also accepts an Ethernet broadband source.
Best For: Homes, temporary workspaces and small sites needing a compatible 4G data connection with simple wired and wireless sharing.
Before you order: Check the operator bands, coverage, SIM size, APN/PIN requirements and data allowance before purchase. LTE supports theoretical downloads up to 150 Mbps and uploads up to 50 Mbps; N300 describes the Wi-Fi link rate. Actual performance depends on the network, signal, devices and traffic. Ethernet ports are 10/100, not Gigabit.
What's in the Box
- MB115-4G router and power adapter.
- RJ45 Ethernet cable and quick installation guide.
- Nano SIM, mobile data plan, internet subscription and pictured client devices are separate.
What It Means in Practice
- Insert an appropriate Nano SIM and connect the supplied power adapter following the guide.
- Check SIM PIN/APN settings and position the router for suitable mobile reception.
- Connect clients over 2.4 GHz Wi-Fi or the three fixed LAN ports.
- Use the fourth LAN/WAN port as another LAN connection or an Ethernet WAN input from suitable external equipment.
- Configure Wi-Fi security, guest access, parental controls and data-usage limits through the supported app or web interface.
What Will Not Work
- No 5G cellular or 5 GHz Wi-Fi; the wireless radio is 2.4 GHz 802.11b/g/n.
- All four Ethernet ports are Fast Ethernet 10/100 Mbps. The configurable port cannot be LAN and WAN simultaneously.
- An Ethernet WAN connection needs a suitable external modem or network source; no DSL or optical modem is built in.
- Mobile subscriptions, coverage and carrier compatibility are not guaranteed. Firmware-dependent VPN options are not promised as factory features.
Key Features
Integrated mobile broadband
LTE Cat4 supports compatible EU mobile networks with a Nano SIM and active data plan.
Wired and wireless sharing
N300 2.4 GHz Wi-Fi and four Fast Ethernet ports connect everyday client devices.
Alternative Ethernet WAN
One LAN/WAN port accepts a separate wired internet source when configured as WAN.
Everyday network controls
Guest Wi-Fi, parental controls, SMS and data-usage tools help manage access and mobile consumption.
Technical Specifications
| Exact SKU / EAN | MB115-4G(EU) / 6957939002831 |
| Mobile modem | 4G LTE Cat4; theoretical 150 Mbps download / 50 Mbps upload |
| EU LTE bands | FDD B1/B3/B5/B7/B8/B20/B28; TDD B38/B40 |
| 3G bands | HSPA+/UMTS B1/B5/B8 |
| SIM | 1× Nano SIM slot; compatible SIM/data plan required |
| Wi-Fi | 2.4 GHz IEEE 802.11b/g/n, up to 300 Mbps physical rate |
| Ethernet | 3× 10/100 LAN + 1× 10/100 LAN/WAN; four total |
| Antennas | 4 external: 2× LTE and 2× Wi-Fi |
| Wireless clients | Up to 32; manufacturer recommends 16, subject to conditions |
| Security / management | WPA-PSK/WPA2-PSK, SPI firewall, guest network, parental controls, app/web |
| Network tools | IPv4/IPv6, SMS, data statistics and data limit |
| Dimensions | 219×140×32 mm |
| Power adapter output | 9 V DC / 0.85 A |
| Operating environment | 0–40°C; 10–90% RH, non-condensing |
| Condition | New |
Frequently Asked Questions
Is this a 5G or dual-band Wi-Fi router?
No. It uses 4G LTE and 2.4 GHz N300 Wi-Fi, without a 5 GHz wireless band.
Is a SIM or data plan supplied?
No. Obtain a compatible Nano SIM and active plan, and check the operator bands and APN/PIN requirements.
Are the Ethernet ports Gigabit?
No. There are three 10/100 LAN ports and one configurable 10/100 LAN/WAN port.
Can I use fixed broadband instead?
The configurable WAN port accepts an Ethernet internet source from appropriate external equipment; DSL/fibre conversion is not built in.
Will every device receive 300 Mbps internet?
No. N300 is the theoretical Wi-Fi link rate; LTE, Fast Ethernet, signal conditions and shared traffic constrain actual throughput.
Singular Expert Insight
Choose this router for connection flexibility rather than headline Wi-Fi speed. Verify local LTE bands and signal first, then account for the 100 Mbps Ethernet interfaces when planning wired use. A sensible data limit and secure guest network can help control shared mobile access.
Buyer’s Guide
✓ Buy it if You need an affordable Nano SIM router for compatible 4G and basic 2.4 GHz wired/wireless sharing.
✕ Skip it if You need 5G, dual-band Wi-Fi, Gigabit Ethernet or an integrated DSL/fibre modem.
→ Also consider Operator compatibility, data plan and coverage, APN/PIN settings, placement and Fast Ethernet limits.