Our take
ST-TCUPM is a compact USB-C adapter that adds two USB-A ports, two card formats, and charging pass-through. Its most important purchase condition is the unresolved 60W-versus-49W rating, plus compatibility with the specific host port.
USB-C laptop users who need two USB-A data ports, both card formats, and pass-through charging, provided the unresolved output rating and host requirements are acceptable..
Buyers who need downstream USB-C data, a settled 60W host output, Apple SuperDrive support, or several bus-powered devices at once.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Satechi verifies ST-TCUPM and UPC 879961005634 as Space Gray.
- Two USB-A data ports plus SD and microSD slots are documented.
- A separate USB-C charging-only path is listed.
What to weigh up
- Satechi's specification and FAQ disagree between 60W and 49W.
- The USB-C connection carries charging only, not data.
- The historical Amazon ASIN was unreadable and remains unmapped.
Specifications and exact model details
The key details
| Model covered | ST-TCUPM |
|---|---|
| Host connector | USB-C host connection |
| USB 3.x data ports | Two USB-A data ports rated up to 5Gbps |
| Installation | Compact adapter with SD and microSD slots |
| Hub power | USB-C PD pass-through input; no included charger is documented |
| Host charging | Official page conflicts between up to 60W specification and 49W FAQ 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
Pair two USB-A ports with card-reader access
ST-TCUPM adds two USB-A data connections plus SD and microSD slots to a USB-C host. That is a focused travel setup for someone who connects a couple of familiar peripherals and moves photos or files from a card. Satechi lists the USB-A ports up to 5Gbps, but the product page does not promise a particular card-reader rate. The USB interface ceiling is not a speed rating for SD or microSD transfers. Check the computer's USB-C capabilities and the current model instructions for the workflow you plan to use, especially if several peripherals will be active together.
Treat the charging rating as unresolved
Satechi's specification block says the pass-through charging connection supports up to 60W, while the FAQ on that same official page says this three-in-one hub has 49W output. That disagreement matters for a laptop buyer. Compare the computer's actual charging requirement with current guidance for this exact model rather than assuming the larger number reaches the host. The USB-C connection is identified as charging-only; it is not a downstream data port. The box contents name the hub and user manual, not a charger, so include a compatible power source in the setup if pass-through is needed.
Avoid overloading the USB-A side
Satechi says the USB-A ports do not support CD readers such as Apple SuperDrive and cannot charge iPads. It recommends connecting one bus-powered device at a time. Those notes make the adapter better suited to modest daily accessories than a collection of power-hungry peripherals. If the intended setup needs optical drives, tablet charging, or several bus-powered devices together, choose a hub with those functions and an appropriate external-power arrangement documented. A fast USB data label does not establish the amount of power available to every attached device.
Confirm the host requirements before choosing it
Satechi says optimal use requires a Thunderbolt 3 or 4, USB4, or USB 3.2 Gen 2 Type-C port with DisplayPort Alt Mode. That is more specific than checking whether a computer simply has a USB-C-shaped socket. Verify the exact host's video and charging support, and check that the compact plug and case leave the port reachable. The listed HDMI output and card readers make this useful as an adapter, but neither proves compatibility with every USB-C notebook. The official requirements should guide the host check before a buyer chooses it for a screen or a charging path.
Match the UPC and color instead of the historical ASIN
Satechi's official page maps UPC 879961005634 to ST-TCUPM in Space Gray and gives the relevant port and charging details. The historical Amazon page for B0BVCT1YKT could not be read, so it does not establish that ASIN as the current exact offer. Use the tagged model and UPC search, then compare the result's color, two USB-A ports, card slots, and charging-only USB-C port. This source-based review does not claim personal testing, present price or stock, or a buyer-review synthesis. Keep the 60W/49W conflict visible even when the selected listing matches the model.
Compare the port list with the charging role
ST-TCUPM is useful when the chosen workflow needs two USB-A connections and the SD and microSD formats, with a separate USB-C path for laptop charging. That path does not transfer files, and the official page does not settle the effective wattage. The travel layout can therefore suit card and peripheral work but should not be chosen to add downstream USB-C data or a guaranteed high-power supply. Check the device mix, host port requirements, and charger together. The model's exact identity is better established than its present Amazon offer or the charging figure.
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Before you buy
Does USB-C transfer files on ST-TCUPM?
No. Satechi describes the USB-C connection as charging-only and does not list downstream USB-C data.
Is the output definitely 60W?
No. The page's specification says up to 60W, while its FAQ states 49W output.
Can it power an Apple SuperDrive or charge an iPad from USB-A?
Satechi says those uses are unsupported and 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.
- Satechi official ST-TCUPM model, UPC, and specification page ↗ — checked October 5, 2026.
- Satechi official page; model/UPC/color, ports, host requirements, USB-A limits, and conflicting 60W/49W claims ↗ — checked October 5, 2026.
- Historical Amazon ASIN page; cache miss, not verified as the current ST-TCUPM offer ↗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.