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Netgear 12v 3.5a Power Supply (MU42-3120350-A1) | Like New

Netgear 12v 3.5a Power Supply (MU42-3120350-A1) | Like New

SKU: 332-10762-01-LN
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Overview

Netgear MU42-3120350-A1 12 V 3.5 A (42 W) Power Supply Adapter

Purpose-Built 42 W Output for Nighthawk & Orbi Systems

The MU42-3120350-A1 delivers a regulated 12 V DC at 3.5 A (42 W), the exact rating specified by Netgear for performance models such as the Nighthawk R7000, R7800, RAX70 and Orbi RBR850/RBS850 nodes.

Global 100–240 V AC Input

A wide-range 100–240 V, 50/60 Hz, ≈1.7 A input stage lets the same brick power your router anywhere in the world—no step-down transformer required.

Standard 5.5 × 2.1 mm Barrel Connector

The centre-positive 5.5 mm OD / 2.1 mm ID coax plug snaps straight into Netgear jacks, eliminating polarity guesswork or adapter sleeves.

Genuine Part Numbers & Safe Operation

Look for Netgear P/N 332-10762-01 or model code 2ABS060 on the label to ensure OEM build quality; every unit carries OVP, OCP and SCP protection to guard your gear against surges or shorts.

Broad Device Compatibility

Official and reseller lists confirm support for more than 30 devices—including C7000/CAX30 cable gateways, EX8000/EAX80 mesh extenders, and Orbi SXR80 business nodes—making the MU42-3120350-A1 a versatile spare for IT kits.

Ideal for Replacements & Field Spares

Whether you’re swapping a failed brick, stocking installer spares, or powering a lab bench, this lightweight adapter keeps 42 W of ripple-free DC on tap with OEM-grade reliability.

Specifications

ManufacturerNetgear
Manufacturer Part NumberMU42-3120350-A1 / 332-10762-01
Product Name12 V 3.5 A 42 W AC/DC Power Adapter
Product TypeRouter / Mesh Power Supply
Input Voltage Range100 – 240 V AC (50 / 60 Hz):contentReference[oaicite:6]{index=6}
Output Voltage12 V DC:contentReference[oaicite:7]{index=7}
Output Current3.5 A:contentReference[oaicite:8]{index=8}
Maximum Output Power42 W:contentReference[oaicite:9]{index=9}
DC Connector5.5 mm OD × 2.5 mm ID barrel, centre-positive:contentReference[oaicite:10]{index=10}
Efficiency LevelDOE / EU Tier VI:contentReference[oaicite:11]{index=11}
Protection FeaturesOVP, OCP, SCP:contentReference[oaicite:12]{index=12}
Typical Compatible ModelsR7000, RAX70, C7000, CAX30, EX8000, RBR850, SXR80 and more:contentReference[oaicite:13]{index=13}

Frequently Asked Questions

Netgear 12v 3.5a Power Supply (MU42-3120350-A1)
Frequently Asked Questions (FAQ's)



What devices are compatible with the Netgear 12V 3.5A Power Supply (MU42-3120350-A1)?
  • It is typically used to power Netgear routers, modems, switches, and network storage devices that require a 12V 3.5A input.
    • Can I use this power supply with any Netgear device?
  • No, only with devices rated for 12V/3.5A. Using it with incompatible devices may result in damage.
    • Is the connector size standard?
  • Yes, it often utilizes a 5.5mm outer / 2.5mm inner barrel connector, but always check with your device.
    • What is the polarity of the connector?
  • It has a center-positive arrangement, which is common to most Netgear power adapters.
    • Can this adapter be used internationally?
  • The adapter typically supports 100-240V input, making it usable worldwide with the correct plug adapter.
    • Does it come with a power cord?
  • Yes, it includes an AC cord for plugging into standard wall outlets.
    • Is it safe to use third-party replacements for this power supply?
  • Only if they have the same voltage (12V), amperage (3.5A), connector size, and polarity. Otherwise, use the genuine Netgear adaptor.
    • What happens if I use a lower amperage power supply?
  • The device may not power on or could experience instability and crashes.
    • How long is the DC cable?
  • Typically around 1.2 to 1.5 meters (4–5 feet), though this can vary slightly.
    • Is the Netgear MU42-3120350-A1 power supply energy-efficient?
  • Yes, it meets efficiency and safety standards such as UL, FCC, and CE compliance.
    • What should I do if my power supply gets warm?
  • Slight warmth is acceptable under load, but excessive heat may indicate a malfunctioning adapter, which should be replaced.
    • Does this adapter have surge protection?
  • Yes, it has built-in protection for overvoltage, overcurrent, and short circuits.
    • Can I use this power adapter with other brands of devices?
  • Only if the voltage, amperage, connector size, and polarity criteria match.
    • What is the weight of the power supply?
  • Approximately 200–250 grams (0.4–0.55 lbs).
    • What is the lifespan of the Netgear MU42-3120350-A1 power supply?
  • Typically 3–5 years depending on usage and environmental conditions.
    • What should I do if the adapter stops working?
  • First, if feasible, test it on another compatible device. If it fails, replace it with an original Netgear adapter.
    • Can I extend the cable length?
  • Yes, with a DC extension cable; however, lengthier cables may result in voltage drops if of poor quality.
    • Can I plug this power supply into a UPS (Uninterruptible Power Supply)?
  • Yes, it works well with a UPS to keep your Netgear device operational during outages.
    • Does this adapter support fast charging for devices?
  • No, it is intended to power Netgear networking equipment, not phones or tablets.
    • Can this adapter be used outdoors?
  • No, it is solely intended for indoor use. For outdoor equipment, utilize a weatherproof power adaptor.
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