The BlitzWolf BW-S33 has six USB-C ports, two USB-A ports and a claimed combined output of up to 420 W. The desktop GaN charging station is designed to charge laptops, phones and other accessories at the same time, with a front display showing the current output of each port.
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The 420 W figure does not apply to a single port. It is the maximum combined output for a particular combination of ports, so port selection matters when connecting multiple devices.
Two USB-C ports with up to 140 W
The most powerful outputs, USB-C1 and USB-C2, each support up to 140 W. They support USB Power Delivery 3.1 and a profile of up to 28 V / 5 A, which can be used by laptops that charge over USB-C at more than 100 W.
To reach 140 W, the connected device must support the relevant profile. You also need a cable rated for USB PD EPR and 5 A, with an electronic marker, or E-Marker. Connecting a laptop to a 140 W port does not guarantee that it will draw that much power.
Other ports and supported charging standards
USB-C3 through USB-C6 each have a maximum output of 100 W. That may be enough for most ultrabooks, tablets and phones, depending on the power and charging profile each device supports. USB-A1 and USB-A2 each have a claimed maximum output of 60 W.
The station supports several charging standards, including USB Power Delivery 3.1. It can therefore serve devices from different manufacturers at the same desk, including Apple, Samsung, Xiaomi and Huawei. Actual charging power depends on the device, the cable and which other ports are in use.
How the 420 W is shared
The manufacturer lists the following six-port configuration for a combined output of 420 W:
| Port | Output |
|---|---|
| USB-C1 | 105 W |
| USB-C2 | 65 W |
| USB-C3 | 65 W |
| USB-C4 | 65 W |
| USB-A1 | 60 W |
| USB-A2 | 60 W |
| **Total** | **420 W** |
USB-C5 and USB-C6 are not used in this configuration. The stated maximum should not be expected automatically with every combination of devices.
In one independent test, the total output with all eight ports in use was approximately 285 W. Without a detailed breakdown of the ports and measurement conditions, however, that figure is not a universal result for every setup.
Two laptops: port selection matters
According to the available information, using USB-C1 and USB-C3 can provide approximately 140 W and 100 W respectively, for a combined output of up to 240 W. With USB-C1 and USB-C2, power is shared differently, at approximately 65 W and 140 W respectively.
If one laptop needs more power than the other, it is worth checking which port each one uses. Available power may change again when more devices are connected.
Display, GaN and power cable
The front digital display shows the current output of the ports. With several devices connected, it can show, for example, the difference between a laptop drawing 100 W and one charging at 45 W. In the independent test mentioned above, the display readings were considered useful in practice.
The charger uses GaN technology. During a longer period under load, the test reported no overheating problems and found that the casing remained relatively mildly warm. Without the measurement conditions, however, that result does not describe the temperature in every use case.
The BW-S33 uses a separate power cable approximately one metre long rather than an integrated plug. The large charger body therefore does not have to hang directly from a wall outlet and can be placed on a desk. It is heavier than a typical travel adapter, which may help prevent stiff cables from moving it around during desktop use.
Key specifications
| Specification | BlitzWolf BW-S33 |
|---|---|
| Technology | GaN |
| Claimed combined output | Up to 420 W with the specified port combination |
| USB-C1 and USB-C2 | Up to 140 W each |
| USB-C3 through USB-C6 | Up to 100 W each |
| USB-A1 and USB-A2 | Claimed maximum of 60 W each |
| USB Power Delivery | PD 3.1, up to 28 V / 5 A on the most powerful ports |
| Display | Shows current port output |
| Power cable | Separate, approximately 1 m |
Who is the BW-S33 suitable for?
The BW-S33 makes the most sense on a desk where multiple laptops, phones, tablets or accessories are charged regularly. It can replace several separate adapters with one station, while the display helps users see how much power connected devices are drawing.
For someone who only charges a phone, it will be unnecessarily large. It is also important to remember that the individual port maximums do not apply simultaneously in every combination. The BW-S33's main advantages are its two 140 W ports and four additional USB-C ports, although their practical value depends on how devices are distributed between them.
