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New power supply: my thoughts on the Apevia CAPTAIN550 ATX Power Supply 10-pk (2024)

My thoughts on the Apevia CAPTAIN550 Power Supply: performance, connectors, safety and design.
Walter Biggs

Cartesian Mathematics Foundation


January 4, 2024


I recently purchased the Apevia CAPTAIN550-10 power supply for my mid-range PC build. Finding a reliable power supply is often critical to any build - CAPTAIN550 has been quite a good one so far.


Property Value Property Value
Brand Apevia Compatible Devices Personal Computer
Connector Type atx, floppy, pci-express, pci-express/, sata, sata/ Output Wattage 550 Watts
Form Factor ATX Wattage 550 watts
Cooling Method Air Item Dimensions LxWxH 5.9 x 5.5 x 3.4 inches
PCI-Express Connector Configuration 24 Pin Fan Size 120 Millimeters


Click on photos to enlarge them:

Apevia captain550 atx power supply 10 pk manual Apevia captain550 atx power supply 10 pk built into desktop Apevia captain550 atx power supply 10 pk in desktop


Overview of Apevia CAPTAIN550

Apevia captain550 atx power supply 10 pk built into desktop

The Apevia CAPTAIN550-10 Captain Series 550W Power Supply is quite the intriguing piece of equipment on paper. With a 550-watt output, it seems designed to handle most mid-range builds comfortably. I’m drawn to the fact that it has an array of connectors, including a 20/24 pin connector that syncs with most motherboards, a 12V connector, and even a 6+2 PCI-express - a dream for anyone with a decent graphics card.

Here are some quick, take-home points I’ve considered:

  • Presence of 1 x 120mm auto-thermally controlled black case fan: This should keep things running cool without me having to micro-manage fan speeds.

  • The variety of connectors available: It’s reassuring to have 3 x SATA and 3 x Molex, which means I won’t have issues connecting different drives and accessories.

  • The dual 115/230V switch: I appreciate the flexibility this offers, depending on regional power supplies.

  • All black cables: A nice touch for maintaining a sleek look within the case.

Concerning the power distribution, the max outputs of +3.3V(16A), +5V(17A), and particularly +12V(39A) appear robust. It’s important to note this unit shouldn’t be overloaded, which could be a downside for those looking to push their systems to the max or use this for energy-intensive operations like Bitcoin mining. The power supply clearly states that it’s not designed for that kind of workload.

I like that Apevia has included safety protections within its build. It’s somewhat reassuring to know there are measures against over-current, over-voltage, over-power, under-voltage, and over-temperature. Although this section isn’t about safety, knowing these features are included does put my mind at ease.

I notice the size, 5.9” x 5.5” x 3.4”, is pretty standard for ATX power supplies, which should fit well in most cases. However, for those with exceptionally tight spaces, double-checking dimensions is always wise. Their decision to include a fan of 120mm is, I assume, a balance between size and efficient cooling, though I’ve seen both larger and smaller fans in similar units.

The brand Apevia isn’t as widely known as some powerhouse competitors, which can cause some hesitation. But brand recognition isn’t always indicative of quality or performance, and so far, this power supply looks like it could hold its own in a variety of PC builds.

Overall, the Apevia CAPTAIN550 feels like a solid choice for someone who wants a dependable power supply with essential features and without breaking the bank. While I haven’t put it to the test under extreme conditions, it seems capable for everyday computing and gaming needs. The combination of ample connectors, decent power output, and built-in safety measures has this unit standing out as a considerate choice, even if it’s not the most premium option on the shelf.

Connectivity and Compatibility

Apevia captain550 atx power supply 10 pk manual

When I first got my hands on the Apevia CAPTAIN550-10 power supply, I immediately noticed the plethora of connectors available. It’s a must for me to have the flexibility to connect various types of peripherals and components to my PC, and this unit doesn’t disappoint. The connectors include:

  • 1 x 20/24pin Main Power: vital for motherboard compatibility

  • 1 x P8pin (P4+4pin): crucial for CPU power

  • 1 x 6/8pin PCI-express 12V: perfect for high-end graphics cards

  • 3 x SATA: for SSDs and HDDs

  • 3 x Peripheral: for other devices like fans or older drives

  • 1 x Floppy: admittedly, not as useful these days

This range ensures that I can hook up just about everything I need. The ATX form factor is standard, and it fits well in most cases. Also, I appreciate the all-black cables—it keeps the inside of the case looking tidy and professional.

One aspect I value is the inclusion of a 120mm thermo-controlled fan. It keeps the unit cool without generating a lot of noise, and the fact it’s auto-adjusting means one less thing for me to worry about. As for efficiency and power distribution, I’m not going into specifics as that’s covered elsewhere, but with a 550W output, it meets the needs of most mid-range builds.

However, it’s not without its drawbacks. As a power supply designed for general use, it’s clearly stated that this isn’t built for Bitcoin mining. That’s not an issue for me, but it could be a limitation for others looking for a PSU in this wattage range for that purpose. And while the choice to include a floppy connector baffles me given the obsolescence of floppy drives, I suppose it’s better to have it and not need it than to need it and not have it.

Another consideration is the 115/230V switch. While it’s a standard feature allowing for different international power grids, automatic switching would’ve been a better option. It’s a minor inconvenience, but worth noting to prevent any voltage mishaps that could harm the components.

Overall, in terms of connectivity and compatibility, the Apevia CAPTAIN550-10 strikes a good balance, suitably designed for a broad range of personal computer builds. I appreciate its straightforward interface and the safeguard it provides with the circuit protection features. While it doesn’t cater to high-intensity tasks like crypto mining, for a regular PC enthusiast like myself, it’s more than adequate.

Performance and Power Output

Apevia captain550 atx power supply 10 pk in desktop

When I first considered the Apevia CAPTAIN550-10 power supply, I was drawn to its specifications, promising a solid 550 watts of power output. It’s a middle ground wattage that suits a variety of builds, especially those not aimed at extreme overclocking or housing numerous high-end GPUs. With the provided power, most mid-range systems should operate without a hiccup.

Here’s a quick breakdown of my thoughts:


  • Enough wattage for the average PC build.

  • Variety of connectors including a 24-pin ATX, 8-pin CPU, 6+2-pin PCI-e, and multiple SATA and Molex.

  • Comes with a 120mm thermally-controlled fan for cooling, which is a boon for noise and thermal performance.

  • The all-black cables are a nice touch for a clean-looking build.


  • May not suffice for power-hungry, high-end gaming setups or workstations.

  • Using it for Bitcoin mining or similar intensive applications is advised against by the manufacturer.

I like the array of connectors that it comes with, making it quite versatile for different devices. The power distribution across the +3.3V, +5V, and +12V rails seems adequate, with respective amperages of 16A, 17A, and 39A, making sure that components get the power they need. The negative rails are not something I’m particularly concerned about, as the -12V (0.3A) and +5Vsb (2.5A) are mostly ancillary and don’t require much power.

Having an auto-thermally controlled fan is an aspect I appreciate; it’s conveniently quiet and does its job without me noticing. I don’t like the whine of a fan, so the fact that it adjusts to the system’s temperature to balance cooling and noise level is a definite plus.

I’m also mindful that the tolerances for the 5V, 3.3V, and 12V outputs are set at 5%, which isn’t top-notch but is quite standard and acceptable for most applications. For critical components that require precise power regulation, I would perhaps look at a power supply with tighter tolerances.

One item that caught my eye was the warning against using this PSU for Bitcoin mining. It indicates that this power supply isn’t designed for continuous, high-load scenarios. It’s an honest pointer that I appreciate and one that aligns with my usage intent. I wouldn’t want the power supply to become a single point of failure due to misapplication.

The dimensions are standard ATX, meaning it’ll fit into most cases without issue. Aesthetically speaking, I’m grateful for the all-black cable design; it certainly helps to maintain a neat internal appearance of the PC.

In summary, while the Apevia CAPTAIN550-10 appears to be a competent power supply for everyday use, it’s not built for extreme demands. It offers a decent mix of functionality and visual appeal for any builder not looking to push the envelope of PC performance.

Safety Features and Build

Illustration highlighting safety protocols

As I wrap up my thoughts on the Apevia CAPTAIN550 Power Supply, the considerations of safety features and build quality stand out. After all, when I’m putting together a PC, the last thing I want to worry about is whether my power supply will become my system’s Achilles’ heel.

The list of safety measures included with the CAPTAIN550 is undoubtedly reassuring:

  • Circuit Protection: This is crucial for preventing any short circuits that can cause major damage, not just to the power supply but potentially other components as well.

  • Over-Current Protection: It keeps the unit from delivering more current than it’s designed to handle.

  • Over-Voltage and Under-Voltage Protection: This ensures stable operation even if the incoming AC power isn’t as steady as it should be.

  • Over-Power Protection: It’s like a safety net that ensures the power supply won’t push beyond its limits.

  • Over-Temperature Protection: This helps in shutting down the unit if it gets too hot, acting as an essential fail-safe to prevent overheating.

While I appreciate the auto-thermally controlled 120mm fan, which is designed to keep temperatures in check, the power supply’s capacity for heavy-duty tasks like Bitcoin mining is limited. The manufacturer is upfront about this, emphasizing that the use is not advised as it could shorten the lifespan and is not covered under warranty. Speaking of warranty, while I couldn’t find the exact warranty information, typically I’d like at least a few years of coverage to feel confident in a power supply’s longevity.

The build comes in a standard ATX form factor, and the all-black cables offer an aesthetically clean look in my case. It’s refreshing to see a no-nonsense design geared towards function and form. With dimensions of 5.9 x 5.5 x 3.4 inches, it fits snugly into my PC case without any issues. The 120mm fan size is also fairly standard, providing a reassuring balance of airflow and noise level.

One thing I should mention is that with a tolerance of 5% for the 5V, 3.3V, and 12V outputs, it’s not the most precise unit out there, which could be a mild concern for those looking for extremely tight voltage regulation. But for my needs, it’s more than adequate, especially given the robust protections already in place.

In conclusion, when I’m considering a power supply like the Apevia CAPTAIN550, I have to weigh the positives alongside the few drawbacks. The comprehensive safety measures provide a sense of security, and the build is solid for a mid-tier PC build. It stands as a competent choice for users seeking reliability without needing to support high-end, power-intensive tasks. It’s not perfect, but for everyday usage, it’s a contender that seems to offer fair value for its cost.