SKU: 21798280921

Passive Gigabit POE injector with Surge Protection

Sale price$437.18 Regular price$485.76
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Passive Gigabit POE injector with Surge ProtectionReliable Power and Protection for Your Network Devices The Micro Instruments Guardian Series Gigabit PoE Injector is a robust and versatile solution for powering your PoE enabled equipment while safeguarding it from electrical surges. This passive injector delivers both data and power over a single Ethernet cable, streamlining your installations and reducing cable clutter. Engineered for reliability, it features a high power 70W PoE+ LAN transformer

Reliable Power and Protection for Your Network Devices

The Micro Instruments Guardian Series Gigabit PoE Injector is a robust and versatile solution for powering your PoE-enabled equipment while safeguarding it from electrical surges. This passive injector delivers both data and power over a single Ethernet cable, streamlining your installations and reducing cable clutter. Engineered for reliability, it features a high-power 70W PoE+ LAN transformer to ensure stable power delivery to your devices. Its integrated surge protection provides a critical defense against transient voltage, protecting your valuable network hardware from damage.

Unmatched Flexibility and Compatibility

What sets the Guardian Series injector apart is its exceptional user-configurability. With simple jumper settings, you can select between Mode B (power over 2 pairs) and Phantom power (power over 4 pairs) output, making it compatible with a wide range of devices. Furthermore, the output voltage polarity is also user-configurable on all four pairs, a unique feature that makes it ideal for equipment with reverse polarity requirements, such as Cambium Force 300 devices. This adaptability ensures that you have the right power configuration for your specific hardware needs.

Engineered for Durability and Peace of Mind

The Micro Instruments MI-POE-SP is built with high-quality components to ensure long-lasting performance. It accepts a wide DC input voltage from 12V to 60V, offering flexibility in your power source. For enhanced protection, the unit includes DC input polarity and over-voltage protection, along with a user-replaceable 2 Amp fuse. The data and power lines are further protected by 3-pole GAS discharge tubes, providing an additional layer of surge protection. An earth wire connection terminal allows for a safe discharge path for electrical surges, giving you complete peace of mind.

Technical Specifications
Data Rate 10/100/1000 Mbps
Power over Ethernet (PoE) Passive
PoE Modes User-configurable: Mode B (2-pair) or Phantom (4-pair)
Output Voltage Polarity User-configurable on all 4 pairs
Input Voltage 12VDC to 60VDC
Power Transformer 70W PoE+ High Power LAN Transformer
Surge Protection Yes, integrated
Protection Mechanisms DC input polarity and over-voltage protection, 2 Amp user-replaceable fuse, 3-pole GAS discharge tubes
Connectors RJ45
Dimensions (W x L x H) 12cm x 21cm x 4cm
Weight 200g
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21798280921

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Robert III
Alexandria, US
★★★★★ 5
Nice Sweater
Color: 01-black, Size: Large
This is a very nice sweater. It’s reasonably thick and warm. Looks nice. I like it.
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Reviewed in the United States on January 18, 2026
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Tajuana Perkins
Boise, US
★★★★★ 5
Nice turtle neck sweater
Color: Royal Blue, Size: Small
It was true to size a perfect fit and the color is beautiful. Nice sweater for the amount paid.
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Reviewed in the United States on January 11, 2026
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Nathalie M. Rosario Escobar
Natrona Heights, US
★★★★★ 5
Very good
Color: 01-black, Size: Small
It looks so good on my bf, he really like it. The quality is so perfect.
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Reviewed in the United States on January 15, 2026
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Javian Campbell
Whiting, US
★★★★★ 5
Good quality
These fit so well material is very tick nice for winter they have all different colors and it’s so comfy it’s really good value for your money for that level of thickness
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Reviewed in the United States on September 30, 2025
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Bruce Weiss
Omaha, US
★★★★★ 5
BEST SHOE OF ITS CLASS. My 2nd pair after 3 years...
Size: 9.5, Color: Black/Magenet/British Tan
THIS IS THE BEST SHOE OF ITS CLASS. GREAT VALUE, EVEN THO MORE COSTLY THAN SOME OTHERS THAT LOOK SIMILAR. I just retired my 1st pair of these after THREE years of constantly wearing them around the world -- beaches, hikes, cobblestones, dirt paths, and roads... Always comfortable and supportive. I just stopped wearing them because I felt that after these 3 years, the soles must've lost their springiness compared to when new. But I immediately replaced them with this new pair of the same shoe. They look great in most occasions, and are an amazing value of very high quality. Will expect to buy them again in another 3 years...
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Reviewed in the United States on May 3, 2026

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