Ubiquiti POE-48-24W-G PoE Adapter 48V 24W
The Ubiquiti POE-48-24W-G is an external power-over-Ethernet adapter designed to inject 48VDC power into network devices that require external PoE supplies beyond standard 802.3af/at capabilities. This unit is part of the broader Ubiquiti infrastructure ecosystem and serves as a targeted power injection point for deployments where additional PoE capacity is needed alongside or downstream of primary PoE switches.
Key Features
- 48VDC Output at 0.5A: Delivers 24W of continuous power—sufficient for mid-range outdoor access points, lightweight wireless bridges, and compatible Ubiquiti USIP accessories. At 24W, this adapter sits between entry-level 12V supplies and high-power industrial injectors, making it useful for single-device or small multi-device injection scenarios where you're not running a fully PoE+ switched infrastructure.
- Gigabit Ethernet Port (1000 Mbps): Maintains full-speed network connectivity to the powered device. No bandwidth bottleneck between the adapter and your network—a baseline expectation that is sometimes compromised on older or budget power supplies.
- External AC/DC Input: Accepts standard wall power, giving you flexibility in placement. Unlike switch-based PoE, you're not consuming switch port capacity; you can position this adapter anywhere an AC outlet is accessible, making it practical for retrofit installations or cable runs that don't pass through your equipment rack.
- Compact Lightweight Form Factor: Weighs 0.250 lb and is designed for minimal footprint. This portability means it integrates easily into network closets, ceiling cavities, or equipment racks without requiring dedicated shelf space or mounting hardware—useful in space-constrained environments like retail or hospitality deployments.
- USIP Accessory Compatibility: Engineered specifically for Ubiquiti's USIP (UniFi Switching Intelligent Power) accessory line, ensuring reliable handshake and power delivery to compatible devices. Cross-compatibility with other brands is not guaranteed; verify device voltage and current draw before deploying.
- Made in China: Standard Ubiquiti manufacturing origin; subject to applicable tariff and import regulations depending on deployment jurisdiction.
Integration & Deployment Context
The POE-48-24W-G (often searched as POE 48 24W G) is most effective in mid-market and enterprise environments where a primary network infrastructure has limited remaining PoE budget, or where outdoor access points are installed at distances beyond the switch's native reach. Common scenarios include adding a second PoE injection point on a long cable run to a remote access point, powering a dedicated outdoor surveillance device from a non-PoE switch port, or supporting standalone network accessories in distributed warehouse or campus layouts.
This adapter does not replace a managed PoE switch; rather, it supplements existing infrastructure. If you're building a new deployment from scratch, investing in a PoE+ or PoE++ switch upfront is more cost-effective than daisy-chaining multiple external injectors. However, for retrofit scenarios—adding a camera or access point to an existing non-PoE network segment—the POE-48-24W-G offers a pragmatic, low-cost injection point without requiring switch replacement.
Power & Electrical Specifications
Output: 48VDC @ 0.5A (24W max). Input: AC/DC dual support allows operation from standard wall outlets or internal battery systems in larger deployments. No integrated surge protection is documented; use a UPS or surge-suppressed outlet if the powered device is sensitive to line noise.
Verify that your target device accepts 48VDC input before ordering. Ubiquiti USIP devices are engineered for this voltage, but legacy or non-Ubiquiti equipment may expect 24V, 12V, or 56V—mismatches will cause device failure or permanent damage.
Environmental & Physical Attributes
Operating temperature range is not documented in the available specification summary. If you need this unit to function in extreme cold (outdoor installations in northern climates) or high heat (enclosed cabinet scenarios), contact the manufacturer to confirm thermal operating limits. Typical commercial-grade PoE adapters operate -10°C to 40°C, but this is not guaranteed for this model.
When to Consider a Different Model
If you require higher power delivery (e.g., powering multiple devices simultaneously or high-wattage professional access points), consider a PoE+ (30W) or PoE++ (90W+) external injector or a managed switch with native PoE capacity. If your devices require lower voltage (24VDC or 12VDC), verify compatibility or look for voltage-specific injectors. If you need integrated surge protection or battery backup, you'll require a UPS-backed power distribution unit rather than a passive adapter.
Eden PhillipsPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The POE-48-24W-G is a straightforward power injector that does one job well: inject 48VDC into a network cable to power a compatible device. At 24W and 0.5A output, it's constrained to devices with modest power appetite—don't expect it to run a high-end PTZ camera or industrial access point with built-in redundant radios. But for single outdoor access points, lightweight bridges, or specialist Ubiquiti USIP equipment in retrofit scenarios, it's a pragmatic alternative to replacing your entire switch infrastructure.
Technical Highlights:
- 48VDC @ 0.5A (24W): Sufficient for most Ubiquiti USIP accessories and light-to-mid-range wireless devices. Exceeding this power budget will cause the adapter to throttle or shut down—plan your device inventory carefully before deployment.
- External AC/DC power input: Flexibility in placement without switch dependency, but it also means one more wall outlet consumed and one more power cord in your infrastructure. In a rack deployment, factor in outlet congestion and cable management.
- Gigabit pass-through: No compromise to network speed; data path is isolated from power delivery, so network performance is unaffected by power draw variations.
Deployment Considerations:
- Voltage lock-in: Ubiquiti USIP devices expect 48V. If you accidentally connect this to a device expecting 24V or 12V, you will cause immediate damage. Always confirm device specifications before powering on.
- No redundancy: This is a single point of failure. If the adapter loses power, the downstream device goes dark. For mission-critical outdoor equipment, pair it with a UPS or specify a PoE-enabled switch with built-in failover.
- Cable length consideration: PoE voltage drop increases over long cable runs (Cat5e/Cat6 at 300+ feet will see noticeable loss). If your injector is 200+ feet from the powered device, test with a multimeter to confirm voltage at the device end is still within acceptable range (typically 44V–56V for 48V devices).
Best-fit deployment: retrofit addition of a single outdoor access point or Ubiquiti-branded device to an existing non-PoE network segment in a campus, warehouse, or multi-site enterprise. Not suited to greenfield builds or high-density deployments where a managed PoE switch is more cost-effective upfront.
Frequently Asked Questions
Q: Is the POE-48-24W-G compatible with non-Ubiquiti devices?
A: Compatibility depends on the device's power input specification. The adapter outputs 48VDC; any device that accepts 48VDC PoE input should work. However, Ubiquiti USIP accessories are the primary intended target. Always verify device voltage and current requirements before connecting.
Q: Can I daisy-chain multiple POE-48-24W-G adapters?
A: No. Each adapter is a terminal power supply. Do not connect one adapter's output to another adapter's input. Use a single adapter per powered device or upgrade to a central PoE switch for multi-device scenarios.
Q: What's the maximum cable length between the POE-48-24W-G and the powered device?
A: Standard PoE over copper (Cat5e/Cat6) is rated for 100 meters (328 feet) under IEEE guidelines, but voltage drop increases with distance. At distances over 200 feet, test with a multimeter at the device end to confirm adequate voltage delivery. Longer runs may require higher-gauge cabling or a closer injector placement.
Q: Does the POE-48-24W-G include surge protection?
A: No integrated surge protection is documented. Use the adapter with a UPS-backed outlet or surge suppression strip if the downstream device is sensitive to line noise or lightning exposure is a risk.
Q: What input power does the POE-48-24W-G consume from an AC outlet?
A: Exact AC input specifications are not detailed in the available documentation. Assume roughly 24W+losses (typically 28–30W at the outlet). For power budgeting in UPS scenarios, confirm with the manufacturer or perform a watts-meter test during deployment.
Q: Is there a warranty on the POE-48-24W-G?
A: Warranty information is not detailed in the available product specification. Contact Ubiquiti or the specialty distributor for warranty terms and support policy.
