Cisco Meraki MG Cellular Gateways: 4G & 5G for Small Business

Why cellular matters for small business internet

For most Australian small and medium businesses, the internet is no longer a nice-to-have — it's the lifeline for EFTPOS, cloud apps, VoIP, booking systems and everything in between. When fixed-line broadband drops out, work stops.

That's where Cisco Meraki MG cellular gateways come in. They give you a wireless WAN connection over the mobile network (4G LTE or 5G), managed entirely from the Meraki dashboard alongside the rest of your network. No separate console, no fiddly modem firmware — just cloud-managed cellular that fits neatly into the Meraki ecosystem.

This guide walks through the current MG range, how to use it for failover or as a primary link, and how to choose the right model on coverage, throughput and budget.

What a Meraki MG actually does

An MG gateway takes a SIM (or eSIM, depending on model) and turns mobile data into a wired Ethernet uplink you can hand off to your firewall or switch. Two common roles:

• Automatic internet failover — pair an MG with a Meraki MX security appliance. When your primary fixed-line connection fails, the MX fails over to the cellular uplink automatically, then switches back when the line recovers.
• Primary connection — in locations where fixed-line broadband is unreliable, slow or simply unavailable, an MG can serve as the main internet link.

Because it's cloud-managed, you get visibility into signal strength, data usage, connection status and cellular carrier details right from the dashboard — handy for remote sites you don't visit often.

The current Meraki MG range

Cisco has refreshed the MG family, and there are five current models. Here's the quick breakdown.

4G LTE models

• Meraki MG41 (MG41-HW) — the entry-level, most cost-effective option. It's a Cat 18 LTE Advanced Pro gateway delivering strong 4G performance for failover and many primary-connection scenarios.
• Meraki MG41E (MG41E-HW) — the same Cat 18 4G platform, but with external-antenna support. Choose this where signal is marginal and you need to mount aerials for a more reliable connection.

5G models

• Meraki MG51 (MG51-HW) — a high-performance Cat 20 5G sub-6 gateway for sites that need more headroom than 4G can offer.
• Meraki MG51E (MG51E-HW) — the MG51 with external-antenna support, ideal where 5G coverage is present but signal needs a boost from mounted aerials.
• Meraki MG52 (MG52-HW) — the flagship, a Cat 20 5G gateway with support for 5G Standalone (SA). This is the top of the range for maximum throughput and future-proofing.

To keep it simple:

• MG41 and MG41E are 4G LTE.
• MG51, MG51E and MG52 are 5G.

A quick note on the older MG21

If you're still running a Meraki MG21, here's what you need to know: the MG21 is end-of-sale. Cisco no longer sells it, and it has been replaced by the MG41.

Support for existing MG21 units continues for now, so you don't need to panic — but you can't buy new ones, and you should plan to migrate to the MG41 as part of your next refresh. Don't treat the MG21 as a buying option going forward.

Failover vs primary: which use case are you solving?

The right model often depends on how the gateway will be used.

For failover (paired with a Meraki MX):

• The cellular link only carries traffic when your primary connection is down, so you usually don't need huge throughput.
• The MG41 is often the sweet spot — cost-effective, reliable 4G, and more than enough to keep EFTPOS, email and essential cloud apps running during an outage.
• Step up to a 5G model if your outages tend to be long, you have many users, or you run bandwidth-hungry apps even during failover.

For a primary connection:

• Here the gateway carries all your traffic, all day, so throughput and reliability matter much more.
• A 5G model (MG51, MG51E or MG52) is generally the better choice if 5G coverage is available at the site.
• Where only 4G is available, the MG41 or MG41E will still do the job well — just size your expectations and data plan accordingly.

When to choose the external-antenna "E" models

The MG41E and MG51E exist for one main reason: marginal signal.

The standard MG41 and MG51 have internal antennas that work well where mobile coverage is solid. But signal isn't always strong where you need to place the gateway — think metal-clad sheds, basements, thick-walled buildings, regional sites or comms cupboards far from a window.

Consider an E model when:

• The gateway must be installed somewhere with poor reception (a back room, riser or industrial space).
• You need to mount external aerials higher, outside, or oriented toward the nearest tower.
• You're in a regional or fringe-coverage area and want to squeeze out every bit of signal reliability.
• A site survey shows borderline signal that could cause drop-outs or slow speeds.

If coverage is already strong where the unit will sit, the standard MG41 or MG51 keeps things simpler and more cost-effective.

How to choose: coverage, throughput and budget

Work through these three questions and the right model usually becomes obvious.

1. What coverage do you have at the site?

• Strong 5G coverage → MG51 or MG52.
• 5G present but marginal → MG51E.
• 4G only, good signal → MG41.
• 4G only, marginal signal → MG41E.

2. How much throughput do you need?

• Basic failover for essential services → MG41 is usually plenty.
• Heavy failover or primary use with many users → a 5G model.
• Maximum performance and future-proofing, including 5G Standalone → MG52.

3. What's your budget?

• Most cost-effective entry point → MG41.
• Mid-tier 5G performance → MG51 / MG51E.
• Flagship 5G with SA support → MG52.

A practical pattern for many SMBs: deploy MG41 units for branch failover where 4G is solid, use the E variants at any sites with reception trouble, and reserve the 5G MG51/MG52 for primary-connection sites or locations that genuinely need the extra speed.

Buy your Meraki MG gateway from TYO Store

As an Australian Cisco and Meraki reseller focused on small and medium business, TYO Store can help you pick the right cellular gateway, pair it with the correct Meraki MX, and get your licensing sorted — without the guesswork. The MG gateways — like Meraki's MX appliances, MS switches and indoor MR access points — carry a lifetime hardware warranty, with free advance replacement via RMA while the device is licensed.

We stock the full current range:

• MG41 (MG41-HW) — cost-effective 4G LTE failover and primary.
• MG41E (MG41E-HW) — 4G LTE with external antennas for marginal signal.
• MG51 (MG51-HW) — high-performance 5G sub-6.
• MG51E (MG51E-HW) — 5G with external-antenna support.
• MG52 (MG52-HW) — flagship 5G with 5G Standalone support.

Not sure whether you need 4G or 5G, or whether an external-antenna model is worth it for your site? Get in touch with the TYO Store team for friendly, practical advice — and keep your business online no matter what your fixed line does.