Our take
HDM1H is a dual-display USB-C dock with one HDMI output listed up to 4K/60Hz and a second up to 4K/30Hz, plus Ethernet, USB-A, cards, audio and PD. Up to 85W pass-through is listed from 100W input.
A USB-C laptop setup needing two displays, wired networking, card/audio access and pass-through charging up to the documented 85W limit, after checking host and app support..
Skip it if both monitors need 4K/60Hz, if the laptop requires more than the documented 85W pass-through, or if an independently replaceable host cable or currently available offer is required.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Amazon identifies the exact HDM1H model and B09NBS9DS6 ASIN.
- Two HDMI outputs have explicit but different refresh limits.
- Gigabit Ethernet, USB-A, card readers, audio and PD are also listed.
What to weigh up
- The HDMI outputs do not share one identical maximum mode.
- Up to 85W reaches the host from the listed 100W PD input.
- The host cable is attached and no featured offer was displayed.
Specifications and exact model details
The key details
| Model covered | HDM1H |
|---|---|
| Host connector | USB-C host; attached cable |
| USB 3.x data ports | Two USB-A data ports listed at 5Gbps |
| Installation | Compact dock with attached lead; cable reach should be checked |
| Hub power | Separate hub power not documented |
| Host charging | 100W PD input; up to 85W pass-through listed |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Dual HDMI outputs have different listed ceilings
The HDM1H is designed for a two-display desk: the product page lists one HDMI output up to 4K/60Hz and another up to 4K/30Hz. That difference matters if both monitors are intended for smooth motion or high-refresh desktop use. Do not read the dual-4K headline as two identical 4K/60Hz outputs. Check the current display table, host-computer support and monitor inputs against the resolution and refresh rate needed for each screen.
Ethernet and USB expansion share the compact dock
The listed Gigabit Ethernet connection and two USB-A 5Gbps ports add wired network and ordinary peripheral access beside the displays. This combination may suit a MacBook or another laptop with limited built-in ports. The source does not document how all ports share bandwidth when both monitors, Ethernet, cards and USB devices are active. If the setup includes external storage or a network transfer at the same time, confirm the hub's host connection and consider that the listed interface ceilings are not independent throughput guarantees.
Leave headroom for the hub when charging
The page specifies a 100W PD connection with up to 85W pass-through to the computer. That makes the adapter rating distinct from the maximum power that reaches the laptop. Compare the computer's charging requirement and the available USB-C charger to this stated limit, particularly if the machine is used heavily while driving two monitors. The source does not promise 100W delivered through to the host, and it does not say that a wall charger is included.
Check software, cable reach and current offer
Amazon's current product description mentions the HyperDisplay app, so buyers should confirm the setup steps and supported operating system before relying on the dual-display feature. The page also lists an attached USB-C host cable, which simplifies connection but cannot be replaced independently if its length or placement is wrong. Compare the cable reach and laptop port location with the intended dock position. The product page showed no featured offer during research, so the tagged link verifies identity but not present availability.
Plan card and headset use with the display
The product page lists SD and microSD readers and a 3.5mm audio combo jack alongside the HDMI outputs. That lets a laptop user connect memory cards and a headset through the same dock, but the source does not establish whether both card slots work at once or how the audio jack handles a microphone. Verify the current port diagram and host software requirements if those functions are essential. The listed features are specifications, not measured simultaneous-use results.
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Before you buy
Which model is this?
Amazon identifies model HDM1H for candidate ASIN B09NBS9DS6.
Do both HDMI outputs list 4K/60Hz?
No. One is listed at 4K/60Hz and the other at 4K/30Hz.
How much PD reaches the laptop?
Up to 85W is listed from the 100W input.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Amazon HyperDrive HDM1H product page, exact model and ASIN ↗Paid link · We may earn a commission. — checked October 4, 2026.
- Amazon exact ASIN/model, port and display/PD claims, attached cable, app and no-featured-offer inspection; customer reviews and ranking not used ↗Paid link · We may earn a commission. — checked October 4, 2026.
- Desertcart listing independently associates HyperDrive HDM1H and ASIN ↗ — checked October 4, 2026.
- Amazon US model listing checked October 4, 2026; current condition, price, and availability are confirmed by the seller.
Is it the right fit?
Check the exact model and today’s offers on Amazon.