Our take
The Sinstar listing advertises three USB 3.0 ports, HDMI, Ethernet, SD/microSD, and USB-C pass-through in an eight-in-one layout. The SKU is associated with the title, but rates, charging output, and a current Amazon offer are unverified.
A buyer who wants the advertised mix of USB, display, network, and card functions and will check the exact port diagram and rates on a current offer..
A buyer who needs confirmed 4K/60Hz, Gigabit Ethernet, known card throughput, a specified laptop charging rate, or a merged identity with B073VKGFBM.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The product record pairs the exact historical SKU B073VJJJMS with a Sinstar eight-in-one hub title.
- The advertised mix covers three USB 3.0 ports, HDMI, Ethernet, and two card formats.
- USB-C pass-through is named as a function, though wattage is not specified.
What to weigh up
- HDMI refresh, Ethernet speed, reader performance, USB current, and PD wattage are not documented.
- The Amazon detail page returned a cache miss; no current offer is verified.
- A similar earlier Sinstar record has a different ASIN and is kept separate.
Specifications and exact model details
The key details
| Model covered | B073VJJJMS |
|---|---|
| Host connector | USB-C host is described; video still depends on the computer's USB-C capabilities. |
| USB 3.x data ports | Three USB 3.0 data ports are named in the listing title; per-port charging current is not stated. |
| Installation | A multi-function cabled hub is listed; exact connector spacing and package cable are not described. |
| Hub power | USB-C pass-through is named, but no PD wattage or charger inclusion is specified. |
| Host charging | Laptop output, display refresh, Ethernet rate, and card concurrency remain unknown. |
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
Look for the complete port combination rather than just the eight-in-one label
The Tiendamia catalog record displays a Sinstar eight-in-one adapter with three USB 3.0 ports, HDMI, Ethernet, card readers and a USB-C pass-through connection. For a USB-C laptop, that range can cover common peripherals, an external screen, wired network and removable media without several separate adapters. The headline count does not tell you how those functions are arranged or which combinations can operate at full rate together. Compare a current result's port diagram against your actual equipment: the number and shape of downstream USB ports, the presence of an RJ45 jack and the memory-card slots matter more than the product's count label alone.
Confirm video timing and host support for your monitor
The catalog title calls out 4K HDMI, but it does not provide the refresh rate, color depth or computer requirements. A 4K label alone cannot tell whether the output is limited to 30Hz or can operate at 60Hz. Check the selected offer for a model-specific video specification, and confirm the laptop's USB-C port supports display output. The inspected record does not establish dual-monitor support, HDR, HDCP version or any performance benchmark. If this hub will be used for a work display, presentation or media playback, those missing details should be resolved before buying rather than filled in from similar-looking Sinstar or generic hubs.
Treat the USB sockets as data expansion unless a charging role is stated
The exact product title lists three USB 3.0 ports, which is useful if you need room for a keyboard, mouse or USB storage. The title does not state per-port output current or identify the USB-A ports as phone-charging outlets. USB data generation and charging capability are separate questions, so do not assume that all three sockets can power high-draw devices or charge at a fast rate. The record gives no speed benchmark, and its “USB 3.0” wording should be treated as an interface claim rather than a tested transfer result. For external drives, verify both the current offer's power notes and your host's available bandwidth.
Check card and network specifications for the workload
The Sinstar title names SD and microSD reading and an Ethernet port. This can be practical for importing camera files and using a wired connection where Wi-Fi is unreliable or restricted. It does not state card capacity, speed class support, whether both slots can be used at once, or the Ethernet rate. If you regularly transfer large media files or require a specific wired network speed, look for those exact details on the present offer. A card slot or Ethernet jack is a useful presence signal, not enough evidence to promise performance. The available record also does not say whether the hub's functions share bandwidth.
Read the charging wording carefully
The title describes USB-C pass-through, which indicates a charging path is part of the advertised hub configuration. It does not specify maximum input wattage, the power supply required or how much energy reaches the laptop after the adapter's own draw. If you depend on charging while connected to the monitor and peripherals, verify the PD rating for this exact listing and compare it to the laptop charger and host requirements. The present evidence does not establish that the hub includes a charger. Do not interpret “pass-through” as a promise of a particular laptop charging rate.
Keep the historical ASIN separate from the similar Sinstar record
Tiendamia links the product title and B073VJJJMS in one Amazon-catalog record, which is useful evidence about the old row's broad identity. The exact Amazon page returned a cache miss, however, and the saved B073VKGFBM Sinstar candidate has a different historical ASIN and a different frozen source title. Similar brand and port wording do not prove that the physical revisions are identical. Use the tagged search above and compare model text, photos, video rate, charging input and card layout in the offer you select. This assessment is based on product records, not hands-on testing, customer-review summaries, price or live inventory.
Who should consider it
Consider this Sinstar listing if you want a single hub that advertises three USB 3.0 ports, HDMI, wired Ethernet, card readers and USB-C pass-through, and can confirm the missing speeds and power details on a current offer. Skip it if you need guaranteed 4K/60Hz, a known gigabit network rate, simultaneous card access or a verified present-day B073VJJJMS offer.
Compare for your needs
Find the USB hub that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Does B073VJJJMS appear with the Sinstar eight-in-one title?
Yes; the inspected Amazon-catalog page displays that brand, product title, and SKU together.
Is 4K/60Hz established?
No; the title says 4K HDMI but does not provide a refresh rate.
Does the listing confirm fast laptop charging?
No; it names USB-C pass-through without a wattage or delivered host-power figure.
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.
- Tiendamia's Amazon-catalog record displays the Sinstar eight-in-one title and historical SKU B073VJJJMS ↗ — checked October 5, 2026.
- Tiendamia Amazon-catalog entry displays the Sinstar title, brand, SKU, and title-level port claims ↗ — checked October 5, 2026.
- Amazon B073VJJJMS returned a cache miss; current exact offer was not verified ↗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.