Our take
Choose the original Dock UNI if a USB-C laptop needs two USB-A ports, a USB-C data and charging path, HDMI, and separate SD and microSD slots in a compact adapter. Its documented 4K HDMI ceiling is 30Hz, and the up-to-100W figure is the stated input-path ceiling; the reviewed sources do not establish a single wattage that reaches every connected laptop. Confirm the host supports video over USB-C and compare the model code before ordering.
A laptop owner with video-capable USB-C who needs HDMI, two USB-A ports, and both card slots in a compact adapter..
It is not a fit for someone who needs documented 4K/60Hz, Ethernet, more than two USB-A ports, or a confirmed laptop-delivered power figure. The historical Amazon ASIN is not mapped to this exact SKU.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- One documented adapter combines HDMI, two USB-A ports, a USB-C data/PD path, SD, and microSD.
- ALOGIC lists a compact 119.5 × 49.2 × 12mm body weighing 75g.
- The product sheet states the 4K/30Hz video mode and USB-C DP Alt Mode or Thunderbolt 3 host requirement.
What to weigh up
- HDMI tops out at the listed 4K/30Hz mode; no 4K/60Hz mode is documented for this SKU.
- The 100W PD figure does not establish the wattage delivered to a particular laptop, and no simultaneous port-power budget is given.
- The historical Amazon ASIN is unverified, so the exact-model search link requires checking the offer's SKU.
The key details
| Model covered | ULDUNI-SGR |
|---|---|
| Host connector | USB-C; DP Alt Mode or Thunderbolt 3 for video |
| USB 3.x data ports | 2 USB-A and 1 USB-C USB 3.1 Gen 1 data ports |
| Installation | Compact adapter; 119.5 × 49.2 × 12mm, 75g listed |
| Hub power | No separate hub-power inlet or adapter listed |
| Host charging | Up-to-100W PD path; host-delivered wattage unknown |
Performance figures are manufacturer claims. Source checked October 8, 2026. Regional models and included accessories can differ.
What the features mean for you
Which ports cover a compact desk or travel setup?
The ULDUNI-SGR combines two USB-A 3.1 Gen 1 ports, one downstream USB-C data/PD port, a separate HDMI output, and separate SD and microSD readers. That layout can cover a travel or compact desk routine with a mouse or storage device, an external screen, and removable camera media without requiring a separate reader. ALOGIC lists the body at 119.5 × 49.2 × 12mm and 75g, so its published size is suited to carrying with a laptop. It is still a particular port mix: buyers who need wired Ethernet, more than two USB-A sockets, or several screens should check those requirements before choosing it. The exact model sheet, rather than the shared brand name, is the basis for this layout.
Will the host support 4K/30Hz HDMI?
ALOGIC specifies one HDMI output at up to 3840 × 2160 and 30Hz. That can suit a presentation screen or a general secondary display when 30Hz is acceptable, but it is not the 4K/60Hz mode some buyers expect from newer multiport docks. The product sheet also says the computer must provide USB-C with DisplayPort Alt Mode or Thunderbolt 3. A USB-C-shaped connector alone does not confirm that the computer can send video, so check the host specification as well as the monitor. The resolution is a published maximum; these sources do not report a measured display test or promise that every host reaches that mode.
How much laptop power does the 100W PD claim deliver?
The product sheet describes a USB-C port for both data and Power Delivery, with a rating up to 100W, and says it can charge a compatible laptop when connected to a suitable USB-C charger. That makes pass-through charging part of the design, but it does not establish one delivered-power figure for every laptop, charger, cable, and connected-device load. The sheet gives no independent measurement of power reaching a host after negotiation and the hub's own use. Treat 100W as the documented ceiling for the product's PD path, then check the laptop's charging requirement and the charger's rating. Do not read it as a promise that the computer receives 100W in every setup.
Can the SD and microSD slots serve your media workflow?
Separate SD and microSD slots save a buyer from carrying a small card reader when moving photos or other files. The product sheet confirms both formats but does not state a card standard, reader generation, simultaneous-card behavior, or measured transfer rate. Someone whose workflow depends on high-speed card transfers should confirm those details before treating this adapter as a suitable ingest tool. The slots are a documented convenience; a particular read or write speed is not. The same caution applies to the USB ports: ALOGIC lists USB 3.1 Gen 1 for the USB-A and USB-C data paths, but the sources do not provide a workload benchmark or simultaneous-throughput result.
Does your laptop and exact offer match the ULDUNI-SGR?
ALOGIC's product sheet names ULDUNI-SGR and lists a USB-C input, while the current product page presents a shared color-variant SKU. The saved Amazon identifier B07PRZKB3J could not be tied to this exact model, so the tagged search destination lets the buyer compare the selected offer with the model code and port diagram. This original Dock UNI is distinct from the later ULDUNIV2-SGR Gen 2; do not transfer the later model's specifications to it. The sheet names USB-C hosts with DisplayPort Alt Mode or Thunderbolt 3 and lists Windows 10 or later, Mac OS, and Chromebook compatibility. Confirm the computer's video capability and exact listing before ordering. This review uses product documentation only; it makes no hands-on, price, availability, sales, or customer-review claim.
What else to compare
Before you buy
Does the ULDUNI-SGR support 4K at 60Hz?
No 4K/60Hz mode is listed for this model. ALOGIC's sheet specifies HDMI up to 3840 × 2160 at 30Hz.
Does the laptop receive 100W?
The documentation states an up-to-100W PD path. It does not establish a universal host-delivered wattage after the charger, cable, laptop negotiation, and connected load are considered.
Will it send video from any USB-C port?
The product sheet requires USB-C with DisplayPort Alt Mode or Thunderbolt 3. Check the laptop's port capabilities before relying on HDMI.
Does it include both SD and microSD readers?
Yes. The product sheet lists separate SD and microSD slots; it does not give a transfer-rate or simultaneous-use claim.
Is B07PRZKB3J confirmed as the ULDUNI-SGR listing?
No. The historical Amazon page did not establish that mapping, so use the tagged exact-model search and verify the selected offer's model code.
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 & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- ALOGIC Dock UNI official product page and exact-model product sheet ↗ — checked October 8, 2026.
- ALOGIC Dock UNI product page, features, and shared color-variant listing ↗ — checked October 8, 2026.
- ALOGIC ULDUNI-SGR model sheet: port layout, HDMI mode, PD path, host requirements, and dimensions ↗ — checked October 8, 2026.
The decision
Choose the original Dock UNI if a USB-C laptop needs two USB-A ports, a USB-C data and charging path, HDMI, and separate SD and microSD slots in a compact adapter. Its documented 4K HDMI ceiling is 30Hz, and the up-to-100W figure is the stated input-path ceiling; the reviewed sources do not establish a single wattage that reaches every connected laptop. Confirm the host supports video over USB-C and compare the model code before ordering.
Is it the right fit?
Check the exact model and today’s offers on Amazon.