Let’s cut to the chase: b01kwy73ki is an Amazon ASIN for a travel / wall USB charger made by iClever. It’s often called the iClever BoostCube charger (foldable plug, dual USB ports, travel-style). It’s one of those compact, useful tech gadgets that most people don’t think about until they really need them.
What this means is that if you’re traveling, or you have limited plug space, or you want something simple and reliable to charge your phone or tablet, this product might be worth checking out. In the rest of this post, I’ll break down what I gathered about it, how it performs, what its pros and cons likely are, and whether you should consider it.
Design & Form Factor
This charger has a minimalist design. It features a foldable plug — that means when you’re not using it, the prongs tuck in. That makes it easier to carry around without the risk of bending or snagging the plug in your bag. It’s compact enough that it can slip into a bag pocket or charger pouch without adding bulk.
The body is small and intended for travel. Because the plug folds and there are only two USB ports, it doesn’t dominate your outlet space. It looks simple, functional, and efficient. There’s nothing flashy about it; instead, it’s clearly built for utility rather than show. The Material & finish seem durable enough for regular use.
If you care about weight when you’re packing for vacation, business trip, or daily commuting with multiple devices, a charger like b01kwy73ki saves you from carrying multiple bricks.
Power Output & Charging Capacity
One of the most important questions is how fast / how much this charger can output. According to reviews of similar versions of the iClever BoostCube family, it provides two USB ports with a total output of roughly 24 watts (which is often 5 V × 4.8 A — that is, 2.4 A per port when both are in use). Techaeris+1
That means you could charge two devices simultaneously at a respectable speed. It won’t be as fast as some newer “quick charge” or USB-C high watt-power chargers, but for standard smartphone or tablet charging it performs well — especially considering its small size and folded-plug design.
If you plug in just one device, it can also adapt and deliver maximum safe current for that device. That makes it a “smart” dual-port charger in the sense that it detects how much current is needed and distributes it accordingly. That’s helpful if you’ve got different devices (phone + tablet, phone + power bank, etc.) plugged in at the same time.
Reliability & Safety Features
A good charger isn’t just about power — safety counts. From what reviews say about the iClever BoostCube family, they include protection mechanisms like over-current protection, over-temperature protection, and short-circuit safety. The Gadgeteer+1
That means if your device tries to draw too much current, or if the charger gets too hot, it’s engineered to prevent damage or risk. For everyday use that gives you peace of mind: you’re not just getting a cheap plug — you’re trusting your devices while they charge overnight or during travel.
Also, the plug folding mechanism tends to reduce wear & tear on the prongs, which is nice. Loose or bent prongs are one of the most common ways cheap chargers fail over time.

Use Cases & Scenarios
Let’s talk about when you’d want something like b01kwy73ki.
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When you’re traveling: hotels, airports, borrowed sockets. A foldable-plug dual-USB charger is ideal.
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When you have more than one device to charge from limited outlets: phone + tablet, phone + power bank, etc.
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When you want to carry a backup charger without it being bulky.
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When you need a simple wall-charger solution without needing multiple bricks or bulky adapters.
If you live somewhere with unstable power or frequent outages, having a reliable charger that doesn’t overheat is especially comforting. If you commute or travel often, minimizing charger bulk matters.
Pros & Weaknesses
Here’s what looks good about b01kwy73ki / the iClever BoostCube type charger — and what might hold you back:
Pros
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Compact design with folding plug makes it travel-friendly.
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Dual-USB ports let you charge two devices at once.
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Smart current distribution helps devices charge safely.
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Safety protections likely built in.
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Affordable compared to high-end chargers.
Weaknesses
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It’s not the fastest charger available (no ultra-high watt fast charging or USB-C PD in most variants).
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Limited to two USB-A ports — if you have multiple devices or need USB-C, you might need another adapter.
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It depends on the model whether it supports fast-charge standards (Quick Charge, PD, etc.). If you want the latest charging tech, this may feel outdated.
Also, when both ports are in use with high-demand devices, charging may slow compared to modern high-wattage chargers.
Performance (What Users Say)
User reviews of the BoostCube dual-USB charger models report that it works reliably, that it doesn’t overheat noticeably, and that it performs well for its price. Techaeris+1
In real-world testing, users found it acceptable for regular smartphone / tablet charging. Some say it’s not blazing-fast compared to newer charging tech, but it’s consistent, safe, and durable. Especially for everyday carry or travel, it holds up.
If I were you, I’d treat it as a dependable “daily driver” charger rather than a performance-monster. It’s ideal if you’re okay with standard speeds in exchange for reliability and portability.
Comparison with Alternatives
You might ask: how does b01kwy73ki compare with other chargers?
Compared to bulky multi-port charging bricks (4, 6 USB ports), it’s much smaller, lighter, and more convenient to carry. On the flip side, it doesn’t deliver as much total power or offer newer standards like USB-C PD or USB-C to USB-C fast charging at high wattages.
Compared to high-end fast chargers in laptops or modern phone bundles, it’s slower — but it’s also much cheaper and typically more universal (USB-A style). If you don’t need cutting-edge fast charging, it holds its own pretty well.
If you upgrade to a modern phone that demands higher charging wattage (30 W, 45 W), then you might want a different charger — but for now, in many normal use cases, b01kwy73ki is fine.

Buying Tips & Things to Watch
Before you click “buy,” here are some things you should check:
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Make sure your device uses USB-A (or that you have appropriate cable)
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Check input voltage compatibility (if you travel internationally) — many of these chargers support 100-240V, but double check.
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Consider whether you need fast-charge protocols or USB-C PD. If yes, this charger may or may not meet them.
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Check the weight and plug-folding reliability (user reviews often mention how rugged or how loose the plug becomes after months).
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If you’ll charge multiple high-drain devices (e.g. tablet + power bank), test whether the charger gets warm when both ports are used.
Also, if you use power-banks or battery packs with your devices, check whether the charger is recognized correctly (some “smart current identification” features work better with certain brands than others).
Who Should (or Shouldn’t) Buy It?
If you’re someone who travels often, has two or fewer devices to charge simultaneously, and you want something small, safe, and reliable — you probably should buy it.
On the other hand, if you have many devices, or you own a newer laptop / phone combination that needs high-watt USB-C PD charging, or if you want “fastest possible charging speed,” there may be better options.
If your priority is “low cost, portability, safe dual charging,” then b01kwy73ki is a strong candidate.
Maintenance & Care Advice
To get the most out of a charger like this:
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Keep it away from water or excessive heat. While it has safety protections, high ambient temperatures reduce its lifespan.
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Don’t block airflow around it — if plugged in behind furniture, ensure it doesn’t get too hot.
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Fold the plug when storing it to avoid bending of metal prongs.
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Clean plugs gently (a dry cloth) if they get dusty or greasy; loose contacts from dirt can raise resistance.
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Unplug when not in use for extended periods to avoid standby load (though such chargers usually draw minimal power when idle).
By treating it like a small piece of tech rather than a throw-away brick, you’ll likely stretch its usable years.

Conclusion
Overall, b01kwy73ki (iClever BoostCube dual-USB travel charger) is a practical, no-nonsense gadget. It won’t break records for charging speed, but it does what you want it to do: charge your devices safely, reliably, and without fuss.
If I were you, I’d keep one in my travel bag, one at home, and maybe resell or upgrade later when my devices demand more wattage — but this is a solid charger for now.
If you want something simple, affordable, and dependable, this hits the mark.
FAQs
What is b01kwy73ki?
It’s the Amazon ASIN for the iClever BoostCube dual-USB travel wall charger.
Can it charge two devices at once?
Yes — it has two USB-A ports and can charge two devices together.
Does it support fast-charging protocols?
It does not support the most advanced USB-C PD in many cases; instead it provides smart current distribution via USB-A. For most phones/tablets it is fast enough, though not cutting-edge.
Is it safe to use?
Yes, according to multiple reviews it includes protections for over-current, over-temperature, and short-circuit safety.
Would I recommend it for long-term use?
Yes, if you don’t need ultra-high wattage charging and want convenience + portability. If your future devices demand more wattage (e.g. modern laptops via USB-C), you might want to look at higher-power chargers later.
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