Our take
The ST-SCMA2G is a slim USB-C adapter for someone who needs HDMI, two USB-A connections, and SD and microSD access in one compact layout. Its charging claims disagree and the HDMI refresh rate is absent, so verify both limits against the exact Gold model before relying on them.
USB-C laptop users who want screen output, conventional USB-A peripherals, and both card-reader formats in a slim adapter, and who can verify host video support and accept the unresolved charging rating..
Buyers who require a confirmed 4K refresh mode, settled high-wattage charging, Ethernet, audio I/O, more USB-A ports, or power for several bus-powered drives.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Exact ST-SCMA2G Gold model code is supported by Satechi and B&H.
- HDMI, two USB-A 3.0 ports, and both card-reader formats are listed.
- The USB-C PD connection is distinct from the data ports.
What to weigh up
- B&H's up-to-60W claim conflicts with Satechi's 49W maximum-output guide.
- The saved HDMI specification does not state a refresh rate.
- Satechi recommends one bus-powered device at a time.
Specifications and exact model details
The key details
| Model covered | ST-SCMA2G |
|---|---|
| Host connector | One USB-C host connection |
| USB 3.x data ports | Two USB-A 3.0 data ports |
| Installation | Slim adapter format; confirm host video support and physical reach |
| Hub power | One bus-powered device at a time is recommended; no separate hub supply is documented |
| Host charging | Separate USB-C PD charging port; B&H says 60W while Satechi says 49W maximum output |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Add display, card, and USB-A connections to a USB-C laptop
The ST-SCMA2G brings together one USB-C host connection, one HDMI output, two USB-A 3.0 ports, SD and microSD slots, and a separate USB-C charging port. That combination suits a portable setup where a user moves between a laptop, a presentation screen, and camera cards without carrying a full-size dock. The two USB-A ports can serve a mouse, keyboard, or one ordinary peripheral, but they do not make this a high-port-count hub. B&H does not list Ethernet or audio I/O, so those needs require another adapter. Satechi's documentation index and B&H identify the Gold model code, helping distinguish this finish from the other V2 variants.
Confirm the host video path and the HDMI mode
B&H lists HDMI up to 4K but gives no refresh ceiling. A 4K label alone does not establish 4K at 30Hz or 60Hz, and the saved sources do not show that every USB-C laptop can send video through this adapter. Check the computer's USB-C video capability and the monitor mode you need before choosing it. The adapter lists one HDMI output; the evidence does not support multiple external displays. If a particular refresh rate matters for work, a game, or a presentation, keep this model out of a required-mode match until a current model-specific source confirms it.
Keep the two charging figures visible
The USB-C PD port is separate from the data and display connections, and B&H says it supports up to 60W. Satechi's instructional guide for the Slim Multi-Port Adapter V2 gives a 49W maximum output. Those figures do not establish the same delivered value for a particular computer, so this review does not treat 60W as a settled laptop-charging rating. The source material also says USB PD 2.0 or later is required for charging. Compare the laptop's actual needs with instructions for the exact ST-SCMA2G before counting on pass-through; a larger reseller figure does not erase the lower manufacturer-guide figure.
Use the USB-A ports within the documented power guidance
B&H says the USB-A ports do not support Apple SuperDrive or charging iPads and recommends connecting one bus-powered device at a time. Satechi's guide lists a 5V/1A maximum for each USB-A port and recommends using one hard drive at a time. These limits make the adapter a better fit for lighter peripherals than several power-hungry drives. A USB 3.0 label describes the data interface; it does not establish how multiple devices share power or bandwidth. If the setup depends on running several drives, choose a hub whose supply and per-port limits are documented for that load.
Match the exact Gold model and search result
Satechi's documentation index associates ST-SCMA2G with the Gold Slim Multi-Port Adapter V2, while B&H gives the same MFR code and a fuller port list. The historical Amazon ASIN B0BS8X89G2 did not yield readable listing details in the saved check, so it cannot establish that a present offer is this exact variant. Use the tagged model search and check the selected result's code, finish, two USB-A ports, card slots, HDMI, and separate PD connection. This is a source-based review; it makes no current price, stock, rating, buyer-review, or hands-on claim.
Compare the adapter with the whole travel kit
This model combines video, two USB-A data ports, and two card formats, but leaves Ethernet and audio to other accessories. That balance can reduce loose adapters when a laptop user mainly presents, transfers cards, and connects a light peripheral. It is a weaker fit when one device must supply wired networking, a headset jack, or power for several drives. The saved sources also leave HDMI refresh and effective charging output open. Before selecting it, compare the exact tasks in the bag with the connections that are actually listed.
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Before you buy
Is 60W charging confirmed?
No. B&H lists up to 60W, while Satechi's guide says 49W maximum output; the effective host-delivered rating remains unresolved.
Does the adapter include Ethernet?
No Ethernet I/O is listed in the saved B&H specification for this model.
Can it power an Apple SuperDrive or charge an iPad over USB-A?
B&H says the USB-A ports do not support either use, and the saved guidance recommends one bus-powered device at a time.
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.
- B&H Photo exact-model ST-SCMA2G Gold product page ↗ — checked October 5, 2026.
- B&H exact-model page; Gold MFR code, port list, 60W claim, USB-A caveats, and I/O omissions ↗ — checked October 5, 2026.
- Satechi documentation index; ST-SCMA2G is the Gold Slim Multi-Port Adapter V2 ↗ — checked October 5, 2026.
- Satechi instructional guide; 49W maximum output and USB-A operating limits ↗ — checked October 5, 2026.
- Historical Amazon ASIN page; no readable product detail, mapping remains unverified ↗Paid link · We may earn a commission. — checked October 5, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.