The be quiet! Straight Power 12 750W PSU Review: Proficient Platinum Power

The be quiet! Straight Power 12 750W PSU Review: Proficient Platinum Power

In the field of PC components, shut up! A name synonymous with excellence, known for its combination of quiet functionality and exceptional performance. The company's wide range of products, from high-end power supply units (PSUs) to state-of-the-art cases and cooling solutions, including both air and liquid options, are developed with a keen eye on minimizing noise with maximum efficiency. has gone be quiet! It has won accolades for its dedication to achieving near-silent operation in its lineup, making it a preferred choice among those in the PC enthusiast community who are looking for a quieter computing environment. The diversity of its offerings reflects a deep understanding of the needs of tech enthusiasts and professionals alike, with each product designed to combine low noise levels and high performance.

Today we are looking at it shut up! Straight Power 12 750W PSU, Be quiet! A high-end offering in the PSU portfolio that exemplifies the brand's approach to product design. The Straight Power 12 Series is designed to provide excellent performance and whisper-quiet operation, appealing to users who want the perfect combination of power efficiency and sound levels, without compromising reliability and high quality. Looking for The 750-watt model we're reviewing today is the weakest unit in the series, yet still enough to easily power a modern gaming system with a mid-range GPU.

be quiet! Street Power 12 750W
Power Specifications (Rating @ 50 °C)
Rail +3.3V +5V +12V +5Vsb -12V
Maximum output 25A 25A 62.5A 3A 0.3A
130W 750W 15W 3.6W
80 plus rating Platinum
AC input 100 – 240 VAC, 50 – 60 Hz
MSRP $140

Packaging and bundles

The Straight Power 12 750W PSU appears in a sleek package that sticks to the classic black design. We tend to take center stage with the PSU snapshot at the front. Inside the box, a nylon bag and foam inserts ensure that the unit reaches you without any scratches. Information about the unit and its performance is printed on the sides and back of the box.

Be quiet! Focused on providing only what's necessary, the Straight Power 12 750W packaging includes everything you need to get it up and running. Inside, you'll find a basic set of mounting screws, an AC power cable, and something else to sweeten the deal – a detailed manual and some cable ties, plus two cable straps that hold two modular cable bundles together. keep together .

What sets the Straight Power 12 apart is the design of the modular cables themselves. It is a fully modular design that allows the removal of every DC power cable, even the 24-pin ATX connector, which is common nowadays. However, the all black cables are all nylon sleeved for a uniform look, unlike most of the competition which is trying to get rid of nylon sleeves and use ribbon-like cables instead.

be quiet! Street Power 12 750W
Connector type Hardwired Modular
ATX 24 pin 1
EPS 4+4 pin 1
EPS 8 pin 1
PCI-E 5.0 1
PCI-E 8 pin 4
Sita 9
Molex 2

be quiet! Street Power 12 750W PSU

Physical appearance

be quiet! The Straight Power 12 750W PSU is housed in a chassis that measures 86 mm × 150 mm × 160 mm (H × W × D), making it slightly longer than the dimensions of a formal ATX PSU. It can fit seamlessly into a wide variety of contemporary PC cases, especially those designed with high-performance components in mind. The size is precisely selected to accommodate its 135mm cooling fan, ensuring efficient thermal management.

be quiet! has focused on the Street Power 12 750W's exterior aesthetics, a detail that stands out for a product designed to deliver both quality and performance. The unit boasts a satin black finish, offering a refined look, with the company's logo beautifully embossed on the right side of the chassis. The fan finger guard design is distinctive, featuring a unique parallel wire construction that enhances the overall look of the PSU. On the left side, there is a sticker that shows the electrical specifications and certifications, maintaining a balance between functionality and design sophistication, with the upper part kept sleek and simple.

On the back, you'll find the usual on/off switch alongside the AC input, with the front of the unit dominated by modular cable connectors, each labeled with a clear white legend for straightforward identification. Notably, the Street Power 12 750W features an ATX 3.0 PCI 5.0 600W (12VHPWR) connector, highlighting its compliance with the latest ATX 3.0 standards. This makes it a standout choice, especially given its power output, ready to support the latest, power-hungry GPUs, yet leaving the system builder with a balance of system components. Considerations – Although the Street Power 12 750W PSU can theoretically power the most power-hungry GPU currently available, it cannot handle both that and the power-hungry CPU.

Interior design

be quiet! The Straight Power 12 750W PSU features a cooling fan from their own prestigious lineup, the SilentWings 3 135mm, featuring a black design and a Fluid Dynamic Bearing (FDB) engine for increased durability and performance. By opting for a slightly larger fan than usual for PSUs, this model supports the unit's superior cooling design ethos without compromising on noise. Despite its size, the fan is capable of reaching 1800 RPM, fast for a 135mm fan and disproportionately powerful for a 750W unit.

The Straight Power 12 750W PSU is manufactured by FSP, an Original Equipment Manufacturer (OEM) known for its prominent presence in the power supply sector, catering to both the mid-range and high-end markets. FSP holds a prominent position among elite PSU manufacturers, due to its long history and considerable expertise in manufacturing PC power supplies. Their reputation for producing high quality and reliable units is well established in the industry, marking them as a trusted name for both consumers and professionals looking for reliable power solutions.

The Straight Power 12 750W PSU incorporates quite advanced but proven topologies, combining performance with reliability. The unit is equipped with a slightly improved filtering stage consisting of four Y capacitors, two X capacitors, and two coffee filtering inductors, leading to a pair of standard rectifier bridges that can be found on their typical small heatsinks. Its Active Power Factor Correction (APFC) circuitry is mounted on a large heatsink located on the edge of the PCB. This part consists of two APFC MOSFETs (R6030KNX) and a diode, complete with a filtering inductor wrapped in a plastic sleeve and two high-quality Rubicon capacitors (330 μF each).

For its inverter core stage, the Street Power 12 750W PSU uses a full-bridge LLC topology, a proven choice for high-performance power supplies. The four bridge MOSFETs are located on the same long heatsink as the APFC components. The secondary stage has a small output from the rear of the PCB with four MOSFETs that handle synchronous rectification for the main 12V line. A typical vertical daughter board contains DC-to-DC conversion circuits to generate 3.3V and 5V lines.

For the capacitors on the secondary side, a combination of premium Rubicon and Nippon Chemi-Con components are used, indicating a commitment to high quality and reliability. The choice of capacitors makes the Street Power 12 a fully Japanese affair, as expected of a product of its class.

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