SinLoon PC Power on Button Desktop Computer Power Switch External Remote Start 5 vs JUSTOP Black 700W Power Supply Unit ATX PSU With 120MM Quiet Fan

Purpose and Functionality

The SinLoon PC Power on Button and the JUSTOP Black 700W Power Supply Unit serve fundamentally different purposes in a computer setup. The SinLoon is an external power switch designed to offer convenience by relocating or extending the PC’s power button with a 1.8-metre cable, priced at £8.99. Meanwhile, the JUSTOP 700W PSU, costing £29.95, supplies power to the entire system, converting mains electricity to the required voltages and providing protection features.

The SinLoon product’s main function is to replace or supplement the existing power button on a desktop, allowing users to start their computers remotely or from a more accessible location. It includes LED connectors and splitters for dual button operation. The JUSTOP PSU, on the other hand, is a core component essential for powering all computer parts reliably, with a 700W capacity and multiple connectors to support a variety of devices.

Installation and Compatibility

The SinLoon power button is designed for easy installation, requiring connection to POWER LED+, POWER LED-, and POWER SW connectors on the motherboard, with a simple peel-and-stick adhesive for mounting. It’s compatible with most desktop PCs needing an external or replacement power switch and supports simultaneous use of the original and external buttons via included splitters.

In contrast, the JUSTOP 700W power supply unit complies with Intel ATX 12V v2.3 and EPS 12V v2.92 standards, ensuring broad compatibility with most modern motherboards and CPUs. It features a comprehensive set of connectors, including a 24-pin main, 8-pin 12V, PCI-E, SATA, Molex, and floppy drive connectors, facilitating connection to a wide range of components. Installation involves mounting inside the PC case and connecting these cables to the relevant components.

Build Quality and Design

The SinLoon external power switch combines copper, plastic, and an ABS shell, focusing on a compact and portable design with a 1.8-metre cable. Its build aims for practicality and convenience rather than durability under heavy load, reflecting its role as a simple switch replacement with LED indicators. The inclusion of a self-adhesive sticker enhances user flexibility in placement.

The JUSTOP 700W PSU is a fully enclosed unit measuring 150mm by 85mm by 140mm, with an integrated 120mm quiet cooling fan to maintain optimal operating temperatures. Its design includes protections against over voltage, over power, short circuits, and thermal overload, reflecting a robust build suitable for continuous power delivery. It carries certifications like CE, FCC, UL, and TUV, signalling compliance with electrical safety standards.

Power and Performance

The SinLoon device does not supply power but controls the power state of the computer via the motherboard’s power switch pins. It is a passive component that facilitates turning the PC on or off remotely or from a different location.

The JUSTOP 700W PSU delivers up to 700 watts of power with an efficiency rating of 70%, which is adequate for most mid-range to high-end desktop builds. Its single 8-pin (4+4) 12V rail ensures stable power output, contributing to system stability and safety. The PSU is engineered to maintain power delivery within an operating temperature range of 0-40°C.

Cooling and Noise Levels

Cooling is irrelevant to the SinLoon PC Power on Button since it is merely a switch without any internal electrical load or fan.

The JUSTOP 700W power supply features a 120mm cooling fan designed for quiet operation, producing noise around 40dBA. This is a moderate noise level for a PSU fan, suggesting a balance between efficient cooling and noise control, which is beneficial for users prioritising a quieter computing environment.

Safety and Protection Features

Safety features are not applicable to the SinLoon power button beyond basic electrical compatibility since it is a low-voltage switch without complex circuitry.

In contrast, the JUSTOP 700W PSU is equipped with multiple safety protections: over voltage protection (OVP), under voltage protection (UVP), over load protection (OLP), over power protection (OPP), and short circuit protection (SCP). These safeguards help prevent damage to the power supply itself and the connected components, improving system reliability and user peace of mind.

Price and Value

The SinLoon PC Power on Button is priced at £8.99, making it a very affordable option for users needing a simple external or replacement power switch for their PC. Its cost reflects its limited function but fulfills a niche for convenience and DIY enthusiasts.

The JUSTOP Black 700W PSU is priced at £29.95, which is a reasonable price for a 700W power supply with multiple connectors, safety certifications, and a quiet cooling fan. It represents good value for users building or upgrading a PC who need a reliable and safe power source.

Which should you buy?

Choosing between the SinLoon PC Power on Button and the JUSTOP Black 700W Power Supply Unit depends entirely on your computer needs. If you require an external or replacement power button to start your PC remotely or from a more accessible location, the SinLoon at £8.99 is the straightforward and affordable solution. However, if you need to power your entire system safely and reliably with a 700W supply that includes multiple connectors and extensive protection features, the JUSTOP PSU at £29.95 is the clear choice. The two products address very different roles: one is a simple control accessory, the other a critical power component. Evaluate what your build requires to decide which product fits your needs.