Our take
The Y-3048A fits a simple expansion job when three USB 3.0 ports and a documented SD reader are enough. Its included micro-USB OTG adapter may help a compatible mobile host, but the exact main host connection and any microSD support should be checked rather than inferred from the old listing title.
A user of a compatible USB host who needs three USB 3.0 connections and a confirmed SD reader, including a supported OTG device with the included adapter..
It is not for a buyer requiring verified microSD access, external power, USB-C laptop charging, a confirmed current Amazon ASIN, or measured 5Gbps transfers.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- X-kom identifies the UNITEK Y-3048A and lists three USB 3.0 downstream ports.
- An SD reader and included micro-USB OTG adapter are documented.
- The source describes passive use without a separate supply.
What to weigh up
- The model source specifies SD, not confirmed microSD support.
- The computer-side connector for the full hub configuration is not established here.
- The historical Amazon ASIN and current offer are unverified.
Specifications and exact model details
The key details
| Model covered | Y-3048A |
|---|---|
| Host connector | The record confirms an included micro-USB OTG adapter; the main computer-side connector is not independently established. |
| USB 3.x data ports | Three USB 3.0 downstream ports; backward compatibility does not create separate USB 2.0 sockets. |
| Installation | Passive hub with SD card reader and included OTG adapter; microSD support is unconfirmed. |
| Hub power | Described as passive and not requiring a separate power supply. |
| Host charging | No USB-C PD pass-through or host-delivered charging wattage is documented. |
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
Use three data ports when a small expansion layout is enough
X-kom identifies three USB 3.0 downstream ports on the Y-3048A. That can provide a few extra connections for ordinary accessories without a large powered desktop unit. The listing advertises up to 5Gbps, which is a specification rather than a measured transfer result; host, cable and attached devices affect actual behavior. Several devices also share the upstream path. Choose this model for the port count and interface class, not a promised sustained rate.
Treat the SD reader and microSD uncertainty separately
The inspected model page names an SD card reader, while the frozen Amazon title also mentions Micro SD. The official model evidence does not independently confirm that second format, so it remains unknown rather than a matching feature. If a microSD card is required, verify the exact reader opening and manual for the Y-3048A variant. Do not treat the older title as proof that the current model includes both formats.
Use the OTG adapter only with a compatible host
X-kom lists an included micro-USB OTG adapter, which can support a compatible mobile host that provides USB OTG functionality. The adapter does not establish support for every phone or tablet. The source also does not pin down the main hub's computer-side connector in this record. Confirm both the host's OTG capability and the physical connector arrangement before buying for a mobile workflow.
Plan for passive operation rather than powered charging
The listing describes the hub as passive and says it does not need a separate power supply. No laptop USB-C PD pass-through or host-delivered wattage is documented. That distinction matters if the attached storage needs more current than the host connection can provide or if you expect the hub to charge a laptop. Compare the needs of the attached devices with the host's USB power limits; the source does not publish a separate per-port current budget.
Search the model without carrying over an unmapped ASIN
The saved source supports UNITEK model Y-3048A, but B00GLKI258 returned a cache miss and is not mapped to a current exact offer. Use the tagged model search and compare the physical label, three USB ports and SD slot. This review preserves the microSD gap and relies on the retailer's saved specification; it does not claim personal testing, current price, stock, sales or buyer-review consensus.
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Before you buy
Does the inspected model page confirm microSD?
No. It specifies an SD reader; the microSD wording in the frozen title remains unconfirmed.
Is an OTG adapter included?
X-kom lists an included micro-USB OTG adapter.
Does it need a separate power supply?
The listing describes the hub as passive and says no separate supply is required.
Is B00GLKI258 mapped to the exact current model?
No. The historical Amazon page could not be read, so use the tagged model search.
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.
- X-kom product listing for UNITEK Y-3048A ↗ — checked October 5, 2026.
- X-kom model, three USB 3.0 ports, SD reader, OTG adapter, passive use and backward compatibility ↗ — checked October 5, 2026.
- Historical Amazon page returned a cache miss; exact current offer 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.