ZALMAN ZM400B-APS Atx Switching Power Supply 400W

( Brand: Zalman ), ( Manufacturer Part Number: ZM400B-APS ), ( Form Factor: Atx ), ( Type: Atx Psu ), ( Maximum Power: 400 W ), ( Cooling: 1 Fan ), ( Color: Black ), ( Country Of Origin: China )

Review ZALMAN 400 Watt Atx Switching Power Supply

The Zalman ZM400B-APS is a high-performance 400-watt ATX switching power supply designed to deliver reliable and efficient power to your computer components. This power supply unit (PSU) boasts a modern, sleek design with a flat black finish and a compact form factor, making it an excellent choice for those who value both functionality and aesthetics.

At its heart, the ZM400B-APS utilizes a single 12V rail, capable of delivering up to 33.33 amps, ensuring that your components receive a consistent and stable power supply. The PSU also features active PFC (Power Factor Correction) technology, which not only ensures efficient power delivery but also helps reduce power loss and improve overall system performance.

Safety is a top priority for Zalman, and the ZM400B-APS is equipped with various protection features to safeguard your components against overvoltage, undervoltage, overcurrent, short circuits, and overheating. The PSU also includes a built-in fan that automatically adjusts its speed based on the load and temperature, ensuring quiet operation under normal conditions and providing additional cooling when needed.

The Zalman ZM400B-APS is compatible with a wide range of computer systems, thanks to its standard ATX form factor and universal AC input. The PSU includes various connectors to accommodate a wide array of components, including a 24-pin ATX main power connector, four 12V peripheral connectors, a 4 4-pin EPS12V connector, and multiple SATA and PCIe power connectors.

Overall, the Zalman ZM400B-APS is a high-quality, reliable, and efficient power supply that is sure to meet the needs of even the most demanding computer systems. Its modern design, quiet operation, and robust protection features make it an excellent choice for anyone in the market for a new PSU.

The Zalman ZM400B-APS is a 400-watt ATX switching power supply unit (PSU). Here are some pros and cons that might help you make a decision about whether or not to buy it.

1. High Efficiency: The ZM400B-APS has an 80 Bronze certification, which means it operates at a minimum of 82% efficiency at 20%, 50%, and 100% load. This can save energy and reduce heat production.

2. Quiet Operation: Zalman is known for its quiet power supplies, and the ZM400B-APS is no exception. It uses a hydraulic bearing fan that spins at low speeds, resulting in minimal noise.

3. Modular Design: This PSU features a modular design, which means that the cables can be disconnected from the unit, making it easier to manage and install in a case.

4. Protections: The ZM400B-APS comes with various protections, including over voltage, under voltage, over current, short circuit, and over temperature protection, ensuring the safety of your components.

5. Compact Size: The ZM400B-APS has a compact size, making it suitable for smaller cases.

1. Limited Connectivity: The ZM400B-APS has only one 4 4-pin EPS12V connector, which may not be enough for some high-end systems that require multiple EPS connectors.

2. Limited Power Delivery: With only a 400-watt capacity, this PSU may not be sufficient for systems that require more power, especially if they include power-hungry components like high-end graphics cards or overclocked CPUs.

3. No Semi-Modular Design: While the ZM400B-APS does have a modular design, it is not semi-modular. This means that some cables cannot be disconnected, which can lead to clutter and make cable management more difficult.

The Zalman ZM400B-APS is a quiet, efficient, and compact power supply that is suitable for systems with moderate power requirements. Its modular design makes it easy to manage, and its various protections ensure the safety of your components. However, it may not be sufficient for systems that require more power or multiple EPS connectors. Ultimately, the decision to buy the ZM400B-APS depends on the specific requirements of your system.

If you have a system that requires a power supply with a capacity of up to 400 watts and doesn't need multiple EPS connectors, the Zalman ZM400B-APS could be a good choice for you. Its quiet operation, efficient design, and modular connectivity make it an attractive option for those who value performance and convenience. However, if you have a more power-hungry system or one that requires multiple EPS connectors, you may want to consider a higher-capacity PSU with more connectivity options.

Details:

High efficiency power. Compatible with Serial ATA devices. Built in noise killer. Output voltage .

Built in brush less ball bearing fan. Free Shipping. ATX 12V ver1.3. Low air flow impedance design.

100V / 240V; 10 5A; 47 63 Hz. 22 Wire length . ZALMANZM400B-APS 400W 400 Watt ATX Switching Power Supply. Output Load Rating.

For Computer Noise Prevention System.

part #: zm400b prices

• $39.95-$124.99

specifications powsuppy:

• brand: Zalman
• mpn: Zm400b-aps
• form factor: Atx
• type: Atx Psu
• maximum power: 400 W
• cooling: 1 Fan
• color: Black
• country of origin: China

general powsuppy:

• condition: Open box
• Computers/Tablet's Networking > Computer Components Parts > Power Supplies

seller powsuppy:

• rating: 100.0%
• city: Norwalk, California
• # reviews: 3006

offer powsuppy:

• started: February 18, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock

shipping powsuppy:

• type: Fixed
• transit: 5-10 Days
• service: USPS Ground Advantage
• class: Standard
• cost: $0.00
• carrier: USPS

returns powsuppy:

• policy: No Returns

payments powsuppy:

• wallet: Apple-pay
• other
• credit card: Mastercard

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