Can I use this 5V adapter on a device that requires 12V?

No, you must never use a 5V adapter on a 12V device, as it will not provide enough voltage to power the device and may cause erratic behavior. Always ensure the output voltage of the adapter (5V) exactly matches the input voltage required by your device.

Is it safe to use this 2A adapter on a device that only requires 1A?

Yes, it is completely safe to use a 2A adapter on a device that only requires 1A. Electronic devices only draw the current (Amps) they need; the adapter will simply run cooler and more efficiently because it is not being pushed to its maximum capacity.

Can I use this 5.5x2.5mm adapter on a device that requires a 5.5x2.1mm plug?

No, you should not use a 5.5x2.5mm adapter on a 5.5x2.1mm device. While the outer diameter is the same and it might physically slide in, the larger 2.5mm inner hole will not grip the 2.1mm pin tightly, resulting in a loose connection that can cause power loss or dangerous electrical arcing.

Does this power adapter work with standard Hong Kong wall outlets?

Yes, this power adapter features a built-in UK 3-pin plug (Type G), which is the exact standard used for all wall outlets and power strips in Hong Kong. It supports 100-240V AC input, making it perfectly compatible with the local 220V power grid.

Can I bring my IP camera to your store to test if this adapter fits?

Yes, you are highly encouraged to bring your device to Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po. Our technical staff will help you test the physical fit of the 5.5x2.5mm plug and verify the voltage requirements before you make a purchase.

Foscam 5V 2A Power Adapter | 5.5x2.5mm DC Plug (UK 3-Pin)

Name: Foscam 5V 2A Power Adapter | 5.5x2.5mm DC Plug (UK 3-Pin)
Brand: Foscam
SKU: 21PA000281-25MM
Price: 35.0 HKD
Availability: InStock

Short Product Description

The Foscam 5V 2A Power Adapter (SAW15A-050-2000BD) is a reliable 10W replacement power supply featuring a standard UK 3-pin plug and a 5.5x2.5mm DC barrel connector. Designed to deliver stable, continuous power, this CE-certified white adapter is the perfect replacement for broken chargers on IP security cameras, powered USB hubs, and smart home gateways. Available for instant pickup at Sun Cheong Computer Co. Ltd.(新昌電腦有限公司) in Sham Shui Po, our technical staff can help you verify your device's voltage and barrel size requirements before you purchase.

Key Features

10W Power Output: Delivers a stable 5V DC at up to 2 Amps, providing sufficient wattage for IP cameras, baby monitors, and powered USB hubs.
5.5x2.5mm DC Plug: Features the industry-standard barrel connector size for secure, wobble-free power delivery.
UK 3-Pin Standard: Comes with a built-in Type G plug, perfectly suited for standard wall sockets in Hong Kong and the UK.
Center-Positive Polarity: Wired with the industry-standard polarity configuration to ensure safe compatibility with most modern devices.
CE Certified Safety: Manufactured by Foscam to meet strict European safety standards, protecting your home against over-voltage and short circuits.
Clean White Aesthetics: The sleek white casing and cable blend seamlessly with modern home decor and white security cameras.

Full Product Description

Stable 5V Power for IP Cameras and Smart Devices

This Foscam 5V 2A Power Adapter delivers a consistent 10W output to keep your essential security cameras and smart home hubs running 24/7 without interruption. It is engineered to replace lost or burnt-out power supplies for devices that require exactly 5 Volts of direct current (DC). By utilizing high-quality OEM internal components, this adapter prevents voltage fluctuations that can cause IP cameras to reboot randomly or USB hubs to drop connected drives.

Universal 5.5x2.5mm DC Connector

Equipped with a standard 5.5x2.5mm DC barrel plug, this adapter ensures a secure physical connection for high-draw 5V electronics. This specific barrel size (5.5mm outer diameter, 2.5mm inner diameter) is widely used in networking and surveillance equipment, providing a snug fit that prevents accidental power loss. The integrated UK 3-pin plug allows you to connect it directly to standard wall outlets without needing bulky travel adapters, keeping your setup clean and professional.

Pro Tip from Our Technicians

Before plugging this 5V Power Supply into your device, our Sham Shui Po technical team strongly advises checking the voltage and polarity symbols printed on your equipment. This adapter is wired as "Center-Positive" (the inside of the barrel is positive, the outside is negative), which is standard for most electronics, but plugging a 5V adapter into a 12V device (or vice versa) can cause permanent damage. Furthermore, while this 5.5x2.5mm plug can sometimes physically fit into a 5.5x2.1mm socket, the connection will be loose and may cause power arcing; always ensure your device specifically requires a 2.5mm inner pin.

Technical Specifications

Brand: Foscam
Model: SAW15A-050-2000BD
Product Type: AC to DC Power Adapter
Input Voltage: 100-240V AC, 50/60Hz 0.5A (Universal Input)
Output Voltage: 5.0V DC
Maximum Output Current: 2.0A (2000mA)
Maximum Power Output: 10.0W
DC Connector Size: 5.5mm (Outer Diameter) x 2.5mm (Inner Diameter)
Polarity: Center-Positive
AC Plug Type: UK 3-Pin (Type G)
Certifications: CE, Efficiency Level VI

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Can I use this 5V adapter on a device that requires 12V?No, you must never use a 5V adapter on a 12V device, as it will not provide enough voltage to power the device and may cause erratic behavior. Always ensure the output voltage of the adapter (5V) exactly matches the input voltage required by your device.
Is it safe to use this 2A adapter on a device that only requires 1A?Yes, it is completely safe to use a 2A adapter on a device that only requires 1A. Electronic devices only draw the current (Amps) they need; the adapter will simply run cooler and more efficiently because it is not being pushed to its maximum capacity.
Can I use this 5.5x2.5mm adapter on a device that requires a 5.5x2.1mm plug?No, you should not use a 5.5x2.5mm adapter on a 5.5x2.1mm device. While the outer diameter is the same and it might physically slide in, the larger 2.5mm inner hole will not grip the 2.1mm pin tightly, resulting in a loose connection that can cause power loss or dangerous electrical arcing.
Does this power adapter work with standard Hong Kong wall outlets?Yes, this power adapter features a built-in UK 3-pin plug (Type G), which is the exact standard used for all wall outlets and power strips in Hong Kong. It supports 100-240V AC input, making it perfectly compatible with the local 220V power grid.
Can I bring my IP camera to your store to test if this adapter fits?Yes, you are highly encouraged to bring your device to Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po. Our technical staff will help you test the physical fit of the 5.5x2.5mm plug and verify the voltage requirements before you make a purchase.

Target Users / Applications

Smart Home Owners: Replacing a lost or burnt-out power supply for Foscam IP security cameras or baby monitors.
PC Power Users: Providing stable 5V continuous power to external powered USB hubs to support multiple external hard drives.
DIY Electronics Makers: Powering custom 5V Arduino projects, Raspberry Pi setups (via barrel jack adapters), or 5V LED light strips.