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The ROG Bulwark Dock DG310 needs a USB-C Power Delivery (PD) charger rated at 100W or higher. ASUS specifies a 20V/5A, up-to-100W power input and says that a 100W-or-higher PD adapter is required to deliver the dock’s full up-to-80W passthrough to the connected handheld. The charger is sold separately, so it is not in the standard box.
That distinction matters: 100W is the dock’s maximum input requirement, while 80W is the maximum power ASUS lists for the host device through the dock’s fixed upstream USB-C cable. The dock cannot turn a higher-rated charger into more than its 80W host output, and the actual charging rate still depends on the connected device’s own USB-PD behavior.
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Use a charger with a USB-C output that explicitly supports USB Power Delivery at 100W or more. ASUS’s DG310 technical specifications list the power input as USB-C, 20V/5A, up to 100W. ASUS’s support FAQ and product page both recommend a 100W-or-higher PD charger for the dock’s full passthrough capability.
Do not treat a generic USB-C phone charger, a 65W laptop adapter, or a charger whose total wattage is reached only by combining several ports as equivalent. The port connected to the DG310 must be the one that can provide the required USB-PD power. Check the charger’s specifications for both USB Power Delivery and a 100W-or-higher output on that USB-C port.
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What is the difference between the dock’s 100W input and 80W output?
The DG310 accepts up to 100W from the charger but sends up to 80W to the host through its fixed upstream cable. These are two different ratings, not a contradiction.
| Connection | ASUS specification | What it means |
|---|---|---|
| Charger to dock | USB-C Power Delivery, 20V/5A, up to 100W | The adapter should be rated at 100W or higher so the dock can negotiate its stated input. |
| Dock to handheld or host | Up to 80W through the upstream USB-C cable | The dock’s host-side charging ceiling is 80W, even when the adapter is rated above 100W. |
| Upstream cable | Fixed USB-C cable, 60cm | The host connection is built into the dock rather than supplied as a separate replacement cable. |
The extra input headroom covers the dock’s own operation while allowing the host connection to reach the advertised 80W ceiling. ASUS does not publish a promise that every handheld will draw 80W; the host has to support the relevant USB-PD negotiation and may impose its own limit.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWhy does ASUS recommend 100W for an 80W passthrough?
ASUS specifically states that a charger with 100W of Power Delivery or higher is required for 80W passthrough to the host device. In other words, 100W is the supply specification needed to make the dock’s maximum host output available; it is not a claim that the handheld itself will always consume 80W.
USB-PD equipment negotiates an available voltage and current between the charger, dock, and host. The DG310’s published input figure is 20V/5A, which equals 100W. A charger can be rated above that figure, but the dock still remains an up-to-80W host output device. A higher number on the adapter should therefore be viewed as additional capacity, not as a higher DG310 charging mode.
Is the charger included with the ROG Bulwark Dock DG310?
No. ASUS lists the dock, user manual, and warranty card as the package contents and says the charger is not included. Plan to supply a suitable USB-C PD adapter separately before you expect the dock to power a handheld while connected to a display and peripherals.
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When buying a replacement or first charger, read the output table rather than relying on a large wattage printed on the box. A multi-port unit may advertise a high combined total while allocating less power to an individual USB-C port when other devices are connected. For the DG310, the relevant value is the PD output available on the single port you will plug into the dock.
Can the DG310 charge and play at the same time?
Yes, provided the dock is connected to an appropriate PD charger and the host device accepts charging over USB-C. ASUS’s FAQ says the DG310 delivers up to 80W of charging power over its USB-C cable while the device is connected to a TV and peripherals.
That statement describes the dock’s maximum capability, not a guaranteed charge rate for every handheld. The host must support USB-C Power Delivery, and the device’s firmware, battery state, operating mode, and power policy can affect how much power it requests. A device that supports a lower charging limit can still work, but it will not necessarily receive the dock’s full 80W.
What should you look for on a compatible charger?
Use this checklist before connecting an adapter to the DG310:
- USB-C output: The plug must be USB-C, not a USB-A port with an adapter.
- USB Power Delivery: The specifications should identify USB PD, not merely “fast charging” or a proprietary phone-charging system.
- At least 100W: The individual port used by the dock should be rated for 100W or higher.
- Published electrical ratings: A specification showing the supported PD profiles and the 20V/5A, 100W class gives you a way to verify the rating rather than guessing from marketing language.
- Suitable cable arrangement: Use a USB-C-to-USB-C connection from the charger to the dock’s power input. The dock’s 60cm host cable is already attached.
ASUS does not identify a particular third-party charger as certified for the DG310. The safe basis for selection is the port-level USB-PD rating, not a brand name or an assumption that every high-wattage USB-C adapter behaves identically.
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How do you connect the power supply to the DG310?
Set up the power path before attaching the handheld so that the dock can negotiate power cleanly.
- Identify the dock’s power-only USB-C input. This is the port that receives power from the charger. It is separate from the dock’s fixed upstream USB-C cable, which connects to the host.
- Plug the USB-C PD charger into mains power. Confirm that the adapter’s specifications show at least 100W on the USB-C port you are using.
- Connect the charger’s USB-C cable to the DG310 power input. Use a cable and connector appropriate for the charger’s USB-PD output; do not substitute a low-power USB-A connection.
- Connect the fixed upstream cable to the handheld or other host. The cable is 60cm long and is the path through which the dock can provide up to 80W.
- Attach the display and peripherals. The host must support USB-C DisplayPort Alt Mode for video functions and USB Power Delivery for charging, as described in ASUS’s DG310 compatibility FAQ.
- Check the host’s charging indicator. A charging icon confirms that the host is accepting power, but it does not by itself prove that the device is drawing 80W.
If you move the charger between USB-C ports on a multi-port adapter, recheck the output table each time. The available allocation can differ by port or change when another device is connected.
Which devices are intended to work with the DG310?
ASUS says the dock is designed and optimized for the ROG Xbox Ally series. Its broader compatibility requirement is a host with USB-C DisplayPort Alt Mode and USB Power Delivery. A handheld that lacks one of those functions may not provide the expected display, peripheral, or charging behavior even if the charger itself meets the 100W requirement.
Compatibility and power are separate checks. A host can support video output but have a lower charging limit, or accept USB-PD charging without supporting the display mode needed for a docked setup. Consult the host manufacturer’s specifications when you need to verify those capabilities; the DG310’s 100W input rating does not certify every USB-C handheld.
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A lower-rated USB-C PD adapter is below ASUS’s stated recommendation, so you should not expect the DG310 to provide its full 80W host passthrough. It may still establish a connection or charge a host that requests less power, but the official specifications do not promise a particular result for a lower-wattage supply.
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The most common mistake is assuming that “USB-C” automatically means “100W USB-PD.” USB-C describes the connector; Power Delivery describes the negotiated charging system; and the wattage rating describes how much power the port can provide. All three details matter here.
What if the dock charges slowly or does not charge the handheld?
Work through the power path in order rather than replacing the handheld first:
- Verify the adapter type. Confirm that it is USB-C PD and rated at least 100W on the port connected to the dock.
- Remove competing loads. If the adapter shares power among several ports, disconnect the other devices temporarily and check whether its per-port allocation changes.
- Check the connection order. Unplug the charger and host, reconnect the charger to the dock’s power input, then reconnect the fixed upstream cable to the host.
- Confirm host requirements. The handheld or computer should support USB Power Delivery; display use additionally requires USB-C DisplayPort Alt Mode.
- Interpret the charging result correctly. Charging below 80W is not automatically a dock fault. The host may request less than the dock’s maximum, and ASUS does not publish a universal charging rate for every compatible device.
If the adapter meets the published specification and the host still does not charge, check the host and dock manufacturer’s support guidance for that particular device combination. The DG310 documentation establishes the dock’s limits, not a guaranteed behavior for every third-party host.
Can a 140W or 240W charger make the DG310 charge faster?
Not beyond the dock’s published host-side ceiling. ASUS lists up to 100W at the dock input and up to 80W through the upstream cable, so a higher-rated adapter supplies more capacity than required but does not raise the DG310’s 80W passthrough specification. The connected host can also request less than that ceiling.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should you not infer from the 100W requirement?
Three conclusions would go beyond ASUS’s evidence:
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- A 100W adapter does not guarantee that every handheld charges at 80W.
- A charger with a larger headline wattage is not automatically better if its USB-C PD port cannot allocate that power to the DG310.
- The 100W figure does not mean the host receives 100W; the published upstream limit is 80W.
These limits are why the practical buying rule is simple: choose a USB-C PD charger rated at 100W or higher, then verify the host’s own USB-C charging and display capabilities.
What does the official documentation say, and when was it checked?
The current ASUS specifications page, accessed November 12, 2026, lists the 20V/5A, up-to-100W PD input, fixed 60cm upstream cable, up-to-80W host output, and the absence of a charger from the box. The ASUS support FAQ was last updated September 14, 2026, and the current product page repeats the requirement for a 100W-or-higher PD charger for 80W passthrough.
Those sources are the appropriate reference for the DG310’s rated power. They do not certify a named third-party charger, report independent charging tests, or establish a charging rate for every handheld model.
Bottom line: which charger should you buy?
Buy a USB-C Power Delivery charger whose individual USB-C port is rated for 100W or higher. Connect it to the DG310’s power-only USB-C input; the dock can then provide up to 80W through its fixed 60cm upstream cable, subject to the host device’s own USB-PD limits. Because ASUS does not include an adapter, the charger is a separate purchase.
Frequently Asked Questions
Can I use a 65W laptop charger with the DG310?
A 65W USB-C PD adapter is below ASUS’s stated 100W recommendation. It might charge a host that requests less power, but ASUS does not promise full 80W passthrough or a particular operating result with that lower rating.
Does the charger have to be labeled exactly 20V/5A?
ASUS lists 20V/5A as the DG310’s maximum PD input, which is the 100W class. Choose a USB-C PD charger with a published 100W-or-higher output and let USB-PD negotiation select the supported profile; do not try to force a voltage manually.
Can I replace the DG310’s 60cm upstream cable with a longer one?
The upstream cable is specified as fixed and 60cm, so it is part of the dock rather than a separate accessory in the box. ASUS’s published specifications do not describe a user-replaceable cable or certify a substitute cable for the dock’s 80W output.
Why does my handheld show charging but not gain battery quickly?
The dock’s 80W figure is a maximum, not a universal rate. The host may negotiate a lower level because of its own charging limit, battery-management policy, or operating load; ASUS does not publish one charging rate for every compatible handheld.
