HP Thunderbolt 4 100W G6 vs Ultra 280W G6 Dock Comparison 2026

HP’s standard G6 dock versus the workstation G6 dock

HP’s G6 Thunderbolt lineup has two very different answers to the same desk problem. The HP Thunderbolt 4 100W G6 Dock is the standard business dock. It is built for HP commercial laptops that need one Thunderbolt 4 cable, up to 100W host charging, modern monitor outputs, 2.5GbE, and HP fleet features.

The HP Thunderbolt 4 Ultra 280W G6 Dock is the workstation model. It still uses Thunderbolt 4 for data and displays, but it adds a 1 m combo cable with a 4.5 mm barrel-power branch. With the included 330W adapter and a compatible HP workstation, that branch can provide up to 280W. That is the reason this dock exists.

The overall winner is the HP Thunderbolt 4 Ultra 280W G6 Dock, but with a big condition. It has the higher YAML score, 8.0 versus 7.8, more USB capacity, an extra USB-C DisplayPort Alt Mode path, single 8K@60Hz support, and the only charging setup here that can replace a separate HP workstation power brick. If you have the right ZBook-class host, the Ultra 280W G6 is the stronger dock.

For normal office laptops, the 100W G6 is easier to recommend. Its 100W charging is enough for many EliteBook, ProBook, and non-workstation systems, the cable setup is simpler, and the port list already covers a serious Thunderbolt desk. Buying the 280W dock for a laptop that cannot use the barrel branch mostly means paying for power hardware that sits idle.

If you are still deciding whether Thunderbolt is worth it over USB-C, start with our USB-C vs Thunderbolt docking station guide. Both HP docks are native Thunderbolt products, not DisplayLink monitor extenders.

Quick specs comparison

Charging: this is the real buying decision

Charging decides the matchup more than any port count. The 100W G6 is the straightforward dock. Its YAML lists maxWattage: 100, and the product copy says it uses a 120W external power adapter with a fixed 1 m Thunderbolt 4 host cable. That is enough for many HP commercial laptops and a lot of non-HP ultrabooks. It is not meant to be a workstation charger.

The Ultra 280W G6 is more specific. Its YAML lists maxWattage: 280, but the file also explains where that number comes from: the combo cable’s 4.5 mm barrel connector, a 330W or larger HP adapter, and a supported HP workstation. A standard Thunderbolt or USB-C laptop does not use that barrel branch.

The Ultra model still has USB-C charging behavior. The YAML says the USB-C side can provide up to 180W on USB-C PD 3.1 EPR hosts and up to 100W on non-EPR hosts. That is useful, but it also shows why the product is easy to misunderstand. The 280W claim is not universal USB-C charging. It is HP workstation charging through a specialized path.

So the practical rule is simple. If your laptop is a normal HP business notebook, the 100W G6 is the cleaner fit. If your laptop is a supported HP workstation that otherwise needs a separate high-wattage adapter, the Ultra 280W G6 wins because it can simplify the desk. That is a real advantage, but only for the right host.

Displays: both are strong, but the Ultra has the higher ceiling

Both docks use native Thunderbolt 4 and DisplayPort video. Neither uses DisplayLink or Silicon Motion. That is good for driver simplicity, latency, and clean image quality on supported hosts. It also means neither dock can break the normal monitor limits of the laptop.

The 100W G6 YAML lists up to four 4K displays at 60Hz on Thunderbolt hosts with DisplayPort 1.4 and Display Stream Compression. It also lists dual 4K at 120Hz on some high-resolution USB-C hosts and Thunderbolt hosts with enough DisplayPort 1.4 DSC bandwidth. For single-display use, the YAML lists 5K at 60Hz.

The Ultra 280W G6 matches the useful multi-display modes and goes higher for one screen. Its YAML lists single 8K at 60Hz on a DSC-capable path, dual 4K at 120Hz, and quad 4K at 60Hz on Thunderbolt hosts with DP 1.4 DSC. It also adds a USB-C DisplayPort Alt Mode output in the video section, alongside two DisplayPort 1.4 outputs, HDMI 2.1, and downstream Thunderbolt 4.

For most office desks, both docks will be limited by the laptop before they are limited by the dock. A lower-bandwidth USB-C host, a non-DSC graphics path, or a Mac with native external display limits will reduce what you can actually run. HP’s G6 documentation in both YAML files lists up to two extended displays on M4 MacBook Pro systems: one through downstream Thunderbolt 4 and one through HDMI or DisplayPort.

That Mac detail matters. A base Apple Silicon MacBook will not become a four-monitor workstation through either dock. If that is the job, look at a DisplayLink option and compare it with our best docking stations for triple monitors guide.

Ports: the Ultra model has more room to grow

The 100W G6 has a sensible business port mix. The YAML lists two DisplayPort 1.4 outputs, one HDMI 2.1 output, one downstream Thunderbolt 4 port, two USB-C 3.2 ports with 15W accessory power, three USB-A 3.2 ports with charging support, and 2.5GbE. For a typical office setup, that covers monitors, Ethernet, a webcam, keyboard, mouse, headset dongle, and a few USB-C accessories without forcing another hub onto the desk.

The Ultra 280W G6 goes wider. Its YAML lists two DisplayPort 1.4 outputs, HDMI 2.1, downstream Thunderbolt 4, one USB-C DisplayPort Alt Mode output, four USB-C 3.2 ports with 15W accessory power, five USB-A 3.2 ports, and the same 2.5GbE network port. It has the better port count and more display-output flexibility.

Neither dock is aimed at creative media workflows. The YAML for both products lists no SD card reader and no 3.5 mm audio jack. If you need camera-card ingest or analog audio on the desk, plan on a USB reader or USB audio adapter. That is not unusual for HP business docks, but it is one reason creative users often compare these against the CalDigit TS4 or other general-purpose Thunderbolt docks.

For HP fleet desks, the missing media ports may not matter. The useful difference is how many peripherals can stay connected before a second hub appears. The Ultra 280W G6 wins that part on raw YAML facts. The 100W G6 is still enough for many desks, but it is the smaller layout.

Compatibility and fleet features

Both products are HP commercial docks first. The 100W G6 YAML lists Windows 10 and 11, macOS Sonoma, Ubuntu 22.04 LTS with the 5.15 kernel, and ChromeOS M133. The Ultra 280W G6 YAML lists the same broad OS families, with similar warnings that feature support depends on the host.

The strongest compatibility story is not the OS list. It is HP platform support. The 100W G6 product copy names HP Sure Start, HP Wolf Security, HP Quick Connect on supported HP notebooks, Poly Lens, CMSL, WMI, PXE boot, Wake on LAN, MAC address pass-through, and disconnected firmware updates. The Ultra 280W G6 lists the same kind of HP business stack, plus wired vPro behavior on compatible Intel vPro Thunderbolt hosts.

Those features are useful if an IT team is buying for supported HP laptops. They are much less persuasive for a random home setup with a MacBook, a Lenovo laptop, and a gaming monitor. The docks may still work as Thunderbolt docks, but HP-specific buttons, firmware workflows, network identity features, and wake behavior should not be assumed on unsupported systems.

The Ultra model adds one more compatibility layer: the workstation barrel-power path. Its YAML warns that laptops without that HP workstation path do not get the advertised 280W benefit. That is not a small footnote. It is the difference between buying the right product and buying a very expensive ordinary Thunderbolt dock.

Cable and desk setup

The 100W G6 uses a fixed 1 m Thunderbolt 4 cable. Fixed cables have an obvious downside: if the cable is damaged, replacement is not as simple as swapping in any certified cable from a drawer. The YAML even warns that the fixed HP Thunderbolt cable is not meant to be swapped with a generic USB-C cable. Still, the setup is simple. One cable runs to the laptop, the dock uses a DC-barrel power input, and the host gets up to 100W.

The Ultra 280W G6 uses a 1 m combo cable. That cable is the dock’s selling point for supported workstations because it combines Thunderbolt 4 with barrel power. It is also more specialized. The YAML cons warn that the replacement cable is specialized and that HP warns against third-party USB-C substitutions. If the cable matters to your deployment, route it carefully and treat it as part of the dock, not a disposable accessory.

The power brick difference follows the same pattern. The 100W G6 product copy mentions a 120W adapter. The Ultra 280W G6 product copy mentions a 330W adapter. The larger adapter is justified when it replaces a workstation charger. It is unnecessary bulk when the laptop only draws ordinary USB-C power.

Reliability cautions from the YAML

The 100W G6 YAML is not a blank check. Its cons say the best management features are tied to supported HP commercial notebooks. They also warn that Mac display support is narrower than the Windows Thunderbolt headline, that there is no SD card reader or audio jack, and that early Amazon feedback is mixed. The common issues section calls out DP 1.4 DSC requirements for quad 4K, possible Mac dual-display problems, firmware or driver updates before reliable recognition, and limited HP manageability on non-HP systems.

The Ultra 280W G6 YAML has similar warnings, with workstation power added. It flags that the 280W charging claim only matters for compatible HP workstation systems with the barrel connector, Mac display support is narrower than the Windows display ceiling, the cable is specialized, and early retailer or Reddit feedback suggests compatibility confusion outside supported HP platforms. Its common issues include USB-C charging falling back to 100W on non-EPR hosts, quad 4K depending on DP 1.4 DSC, HP management features not working on non-HP laptops, and Mac users not getting expected multi-display behavior.

That makes both docks products you should validate with exact hardware. Test charging, display wake, monitor order, Ethernet, firmware updates, and sleep behavior during the return window. For a fleet, test with the actual laptop models, BIOS versions, monitors, cables, and operating systems you plan to deploy.

Verdict: Ultra 280W G6 wins on capability, 100W G6 wins on simplicity

The HP Thunderbolt 4 Ultra 280W G6 Dock wins this comparison on the facts in the YAML. It scores 8.0 versus 7.8, supports the unique 280W HP workstation charging path, lists more USB-C and USB-A capacity, adds a USB-C DisplayPort Alt Mode video output, and reaches single 8K at 60Hz on the right DSC-capable path. If you are buying for supported HP workstations, it is the better dock.

The HP Thunderbolt 4 100W G6 Dock is the better default for standard office laptops. It charges at up to 100W, supports the same quad 4K@60Hz headline on a capable Thunderbolt host, uses the same 2.5GbE class, includes the same 36-month limited warranty, and avoids the more specialized combo-cable power setup. For EliteBook, ProBook, and many non-workstation business users, that is the saner purchase.

Choose the HP Thunderbolt 4 100W G6 Dock if:

• Your laptop needs up to 100W charging, not workstation-class barrel power.
• You want a simpler one-cable Thunderbolt 4 desk setup.
• You need two DisplayPort 1.4 outputs, HDMI 2.1, downstream Thunderbolt 4, and 2.5GbE.
• You are buying for HP commercial laptops where 100W is enough.
• You want the lower-complexity G6 dock for ordinary office desks.
• You do not need single 8K support or the extra USB ports listed on the Ultra model.

Choose the HP Thunderbolt 4 Ultra 280W G6 Dock if:

• You have a supported HP workstation that can use the 4.5 mm barrel-power branch.
• You want the higher YAML score, 8.0 versus 7.8.
• You need more downstream USB-C and USB-A capacity.
• You want the extra USB-C DisplayPort Alt Mode path.
• Your setup can use single 8K@60Hz or the wider Ultra video layout.
• Your IT team has validated the AW5M5UT model with your HP workstation fleet.

For a known HP workstation deployment, the Ultra 280W G6 is the right tool. For most standard HP business laptops, the 100W G6 is the dock I would test first. Bigger wattage only matters when the laptop can actually use it.