4x4 MIMO Low Profile 4G/5G Omni Antenna - Vandal Resistant

In this review the Proxicast low profile 4x4 MIMO antenna is evaluated for users who need a compact, robust external antenna to improve cellular connectivity for 4x4 MIMO routers and modems. The bottom line: it is best for installations that require a discreet, vandal resistant mount and broad band coverage across Sub-6 4G and 5G bands, with the single biggest reason to buy being its combination of four isolated omnidirectional elements in a small, weatherproof enclosure that supports multiple carriers worldwide.

Key Features

• Low profile design: At roughly 3 in tall the antenna stays unobtrusive on roofs or poles while still providing usable 3-4 dBi gain across its bands.
• 4x4 MIMO support: Four identical isolated antenna elements allow connection to 4x4 MIMO routers and modems for improved diversity and aggregated throughput when paired correctly.
• Wideband coverage: The antenna covers Sub-6 (FR1) cellular frequencies from about 600 to 6000 MHz, so it works with most global 4G/LTE and 5G networks.
• Vandal resistant construction: Durable materials and a screw mount design make it suitable for semi-exposed installations where tampering could be a concern.
• Built-in coax leads: Four 10 ft coax leads terminate in standard SMA male connectors (with pin), simplifying installation on compatible routers and modems.
• Indoor/outdoor use: The enclosure and mount accommodate rooftop or sheltered outdoor placements where a recommended ground plane can be provided.

Who It's For

This antenna is aimed at fleet operators, small businesses, and remote-site technicians who run 4x4 MIMO cellular routers from vendors like Cisco, Cradlepoint, Digi, Pepwave and others and want a discreet external antenna that resists tampering. Installers who can provide a flat metal ground plane will see the best performance from the antenna's design.

It is less suitable for users who lack 4x4 MIMO-capable equipment or who expect dramatic signal gains in areas with very low cellular coverage; some customers report mixed results on signal improvement and speeds, so those needing guaranteed large increases in reception should consider higher-gain directional options instead.

Pros & Cons

Pros

• Compact, unobtrusive low profile that fits many installations without being visually dominant.
• Four isolated elements for true 4x4 MIMO compatibility with many routers and modems.
• Durable, vandal resistant materials and screw mount for semi-exposed outdoor use.
• Wideband coverage across Sub-6 4G and 5G frequencies for global carrier compatibility.

Cons

• Signal and speed improvements are mixed in practice; results depend heavily on site conditions and router configuration.
• May require connector adapters for some modem models despite standard SMA male leads.

Specifications

Height	Approximately 3 in
Gain	About 3-4 dBi
Frequency range	600-6000 MHz (Sub-6 FR1)
Connectors	4 SMA male (with pin) on 10 ft coax leads
MIMO	4x4 omnidirectional isolated elements
Mount	Screw mount, vandal resistant design
Use	Indoor/Outdoor (recommended ground plane)

Our Verdict

The Proxicast low profile 4x4 MIMO antenna is a sensible choice for installers and businesses that need a compact, durable external antenna that supports global Sub-6 4G and 5G bands and true 4x4 MIMO connections. It represents good value when site conditions and a proper ground plane allow it to deliver reliable diversity gains, though those in very weak-signal areas should temper expectations or explore higher-gain directional options.

Frequently Asked Questions

Will this antenna work with my 4x4 MIMO router?
Yes, it is designed for 4x4 MIMO routers and modems from many vendors, but some models may need connector adapters to match non-SMA ports.

Is it weatherproof for outdoor use?
Yes, the enclosure and vandal resistant screw mount are suitable for indoor or sheltered outdoor installations; a flat metal ground plane is recommended for best results.

Will it dramatically increase my cellular speeds?
Performance varies by site: some users see meaningful improvements while others report little change, so results depend on signal environment and router setup.