AOHI Magcube 40W Review: 7.9/10 - Tiny cube charger with foldable prongs
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At a Glance
The AOHI Magcube 40W is one of the most portable GaN chargers you can buy, offering fast dual-port charging in a package that disappears into any bag or pocket.
Prices last checked June 2026
Overview
The AOHI Magcube 40W is a tiny GaN wall charger that packs 40W of power into a near-perfect cube shape with foldable prongs. It features one USB-C port supporting Power Delivery 3.0 at up to 40W and one USB-A port with Quick Charge 3.0 at 18W. Its ultra-compact size and foldable plug make it one of the most travel-friendly chargers available.
Design & Build
The Magcube lives up to its name with a 1.18-inch cube design that is barely larger than a standard Apple 5W charger. The foldable US prongs sit flush against the body when closed, making it incredibly pocketable. The black or white matte finish resists scratches, and a subtle LED indicator shows power status. The two ports are positioned on the same face, and a small branding logo adds a premium touch. Build quality is solid, with a reassuring weight that hints at GaN components inside. The hinge mechanism on the foldable plug feels durable.
Performance
The USB-C port delivers up to 40W, enough to fast-charge an iPhone 15 Pro Max to 50% in about 25 minutes or fully charge an iPad Air in under 2 hours. It can also charge the Nintendo Switch at full speed in handheld mode. The USB-A port provides 18W QC 3.0 for Android devices. When both ports are in use, the charger intelligently splits power, typically delivering 20W to each port. The GaN technology keeps the charger cool even during extended use. PPS support enables Samsung Super Fast Charging on compatible Galaxy devices.
The USB-C port delivers up to 40W, enough to fast-charge an iPhone 15 Pro Max to 50% in about 25 minutes or fully charge an iPad Air in under 2 hours. It can also charge the Nintendo Switch at full speed in handheld mode. The USB-A port provides 18W QC 3.0 for Android devices. When both ports are in use, the charger intelligently splits power, typically delivering 20W to each port. The GaN technology keeps the charger cool even during extended use. PPS support enables Samsung Super Fast Charging on compatible Galaxy devices.
Features
The foldable prongs are the standout feature, making the Magcube exceptionally portable. The dual-port setup allows simultaneous charging of a phone and accessories like earbuds or a smartwatch. Protocol support includes PD 3.0, QC 3.0, PPS, AFC (Samsung), and FCP (Huawei), ensuring broad device compatibility. The charger is small enough to fit in the smallest pocket of most bags. Safety features include over-voltage, over-current, and short-circuit protection.
Pros
- Ultra-compact cube design with foldable plug
- 40W PD charges phones and tablets fast
- Dual port for simultaneous charging
- Wide protocol support
- Excellent travel companion
Cons
- 40W total is limited for laptop charging
- Both ports share total power when active
- LED indicator can be bright in dark rooms
- No USB-C cable included
Verdict
The AOHI Magcube 40W is one of the most portable GaN chargers you can buy, offering fast dual-port charging in a package that disappears into any bag or pocket.
TheAOHI Magcube 40W is one of the most portable GaN chargers you can buy, offering fast dual-port charging in a package that disappears into any bag or pocket.
Sources
- AOHi Official Store - GaN Chargers Collection: iaohi.com/collections/gan-chargers
- Chargerlab - AOHi MagCube 40W Dual USB-C Launch Coverage: chongdiantou.com/archives/140732.html
- 365electric - AOHi MAGCUBE 40W Wall Charger Review: 365electric.com/Personal-Audio/headphones/114410.html
Where to Buy
Check current pricing on eBay or Amazon.
Prices last checked June 2026. Pricing and availability are accurate as of the date/time indicated and are subject to change.
📊 Comparison: AOHI Magcube 40W vs. Competitors
| Specification | AOHI Magcube 40W | Anker 737 Power Bank | Anker Prime 27650mAh | Nitecore NB10000 Gen 2 |
|---|---|---|---|---|
| Price | $29 | $119 | $89 | $59 |
| Power | 40W total | -- | -- | -- |
| Ports | 1x USB-C, 1x USB-A | -- | -- | -- |
| USB-C Output | 40W max (PD 3.0) | -- | -- | -- |
| USB-A Output | 18W max (QC 3.0) | 18W max (5V-9V, 2A/1.5A) | -- | 18W QC (5V-12V, 1.5A-3A) |
| Technology | GaN (Gallium Nitride) | Power Delivery 3.1, bi-directional | -- | Li-ion Nitecore cells |
| Plug | Foldable prongs | -- | -- | -- |
| Dimensions | 1.18 x 1.18 x 1.26 in | 6.18 x 2.17 x 1.97 in | 6.4 × 2.1 × 2.0 inches | 4.76 x 2.32 x 0.43 in |
| Weight | 1.8 oz | 1.39 lbs | 1.43 lbs (650g) | 5.3 oz (150g) |
| Compatibility | PD, QC, PPS, AFC, FCP | -- | -- | -- |
| Colors | Black, White | -- | -- | -- |
| Capacity | -- | 24,000mAh (86.4Wh) | 27,650 mAh (99.5 Wh - TSA-friendly) | 10,000mAh (38.5Wh) |
| USB-C 1 Input | -- | 140W via USB-C (5V-28V, 5A) | -- | -- |
| USB-C 1 Output | -- | 140W max (5V-28V, 5A) | -- | -- |
| USB-C 2 Output | -- | 140W max (5V-28V, 5A) | -- | -- |
| Total Output | -- | 140W max | 250W max (all ports combined) | 18W max |
| Display | -- | OLED screen showing input/output power | 1.3-inch smart OLED (status, speed, temperature) | -- |
| USB-C 1 | -- | -- | 140W Power Delivery 3.1 (input/output) | -- |
| USB-C 2 | -- | -- | 100W Power Delivery (output only) | -- |
| USB-A | -- | -- | 2× 18W (shared, total 30W) | -- |
| Pass-Through | -- | -- | Yes - charges device and battery simultaneously | -- |
| USB-C Input/Output | -- | -- | -- | 20W PD (5V-12V, 1.5A-3A) |
| Materials | -- | -- | -- | Carbon fiber composite |
| Features | -- | -- | -- | Ultralight carbon fiber construction, airplane safe |
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- Build & Design (20% weight): Material quality, ergonomics, and aesthetic appeal.
- Features (20% weight): Breadth and usefulness of included functionality.
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- Battery Life or Reliability (10% weight): Endurance testing for portable devices, or long-term dependability for stationary gear.
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