Our take
Consider the 551 if an adjustable tablet stand and a mix of HDMI, card-reader, USB-A and audio connections are more useful than a compact travel adapter. It is a poor fit if Ethernet, two displays, a precisely confirmed 100W output or a featured current Amazon offer is essential. Verify host video support and the PD rating before committing to it.
A USB-C tablet user who values an adjustable stand and the documented display, card, USB-A and audio mix and can verify charging needs..
Skip it when you need Ethernet, two external displays, a confirmed 100W host output, or a currently available featured offer.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Combines an adjustable foldable tablet stand with HDMI, two USB-A ports, SD/TF slots and audio
- the manual specifies USB-A 5Gbps and HDMI 4K/60
- exact Amazon page and A8387 family are identifiable.
What to weigh up
- Anker's sources conflict between 85W and 100W PD input
- charger is not included
- Amazon showed no featured offer at inspection.
Specifications and exact model details
The key details
| Model covered | A8387 / A83870A1 |
|---|---|
| Host connector | USB-C host/tablet connection |
| USB 3.x data ports | Two USB-A data ports listed at 5Gbps |
| Installation | Foldable adjustable tablet stand |
| Hub power | No separate hub supply established; charger not included |
| Host charging | PD input conflict: manual 85W maximum vs 100W product copy; delivered wattage unknown |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
A hub and a physical stand in one accessory
The Anker 551 is designed to hold a tablet while adding connections, so its desk footprint and placement are different from a small dongle hanging from a laptop. Anker describes an adjustable base and stand, with the base moving up to 70° and the stand up to 180°. The stand can be folded down for storage, and the manufacturer describes an anti-slip surface and raised front edge. This format is most relevant for someone who uses an iPad or another USB-C tablet as a work surface and wants it raised near an external monitor, keyboard and card readers. It is less compelling if the only need is one USB port or if the adapter has to hang from a host connector without taking desk space.
Separate the host connection from the downstream ports
The manual lists two USB-A data ports, HDMI, SD and microSD card slots, a 3.5mm audio port, the USB-C upstream cable to the tablet and a separate USB-C PD input. The upstream connection is how the tablet communicates with the hub; the PD input is for bringing in charger power. Neither should be counted as another USB-A data socket. The hub is therefore a mixed tablet dock: it can attach familiar USB peripherals, external video, memory cards and wired audio from one host cable. If a device needs Ethernet, a second HDMI display, or multiple high-speed USB-A drives, this is not the right feature mix based on the verified port list.
Treat 4K at 60Hz as a supported combination, not a universal promise
Anker's material lists HDMI up to 4K at 60Hz. That is a useful target for a single external screen, but the tablet or computer must support video output over its USB-C connection and the monitor/cable must also accept the mode. The sources name several iPad generations and broader USB-C tablet compatibility; they do not make every USB-C connector a video-capable host. Before choosing around an external display, check the source device's video-out capability and the monitor's input requirements. The resolution figure is a manufacturer specification, not a claim that this review has measured the image or refresh performance.
Resolve the PD rating before planning a charging setup
Anker's Amazon product copy says to use a 45–100W USB-C charger for pass-through charging, and its official A8387 product page presents the PD input as up to 100W. The Anker manual lists the PD-in port at a maximum of 85W. Because the manufacturer's own material conflicts, do not assume that a 100W charger will produce 100W at the tablet or that the hub itself can supply a specific output wattage. The charger is not included; Amazon lists a separate USB-C cable in the box. If charging capacity is important, compare the exact current manual and labels for the selected A8387 version, and make sure the tablet, charger and cable support the desired charging profile.
Use the card slots and USB-A ports for the tasks they name
Anker lists one UHS-I SD slot and one UHS-I microSD/TF slot, alongside two USB-A data ports rated at 5Gbps. The manual establishes the reader types but does not give a maximum card capacity or a tested sustained transfer rate here. The USB-A speed is also a bus specification, not an assurance that multiple devices each receive a dedicated 5Gbps lane simultaneously. For a tablet photo workflow, check card type and capacity support separately; for backups, verify that your tablet file app can access the desired external storage. The 3.5mm audio connection is a convenience for wired headphones or headsets, but confirm the exact audio wiring needs for specialized microphones.
Confirm A8387, A83870A1 and the exact Amazon offer
The historic ASIN B09MK6DBQL currently identifies an Anker 551 silver tablet stand hub under model A8387 on Amazon, while Device.report lists item model A83870A1 for that ASIN. Amazon showed no featured offer at inspection, so the direct tagged page is an identity route rather than a promise that the item can be purchased. Before ordering from a search result, check that the product is the foldable 551 stand version rather than another Anker multiport hub, then compare its ports, cable, color and charging instructions with the current official manual. This review reports the manufacturer's specifications and their PD-rating conflict; it does not claim product testing, live stock, current pricing or buyer-review consensus.
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 the 100W input mean 100W reaches the tablet?
No. The sources do not establish delivered wattage, and the manual lists 85W maximum at PD-in.
Does it have Ethernet?
No Ethernet port appears in the inspected port list.
Is the charger included?
No. Amazon's package details say it is not.
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.
- Anker official A8387 product page and 551 manual ↗ — checked October 4, 2026.
- Official 551 manual: ports and 85W maximum PD-in ↗ — checked October 4, 2026.
- Official A8387 product overview, stand and feature specifications ↗ — checked October 4, 2026.
- A8387 record associates item model A83870A1 with the exact ASIN ↗ — checked October 4, 2026.
- Exact Amazon page identifies silver Anker 551/A8387; no featured offer at inspection ↗Paid link · We may earn a commission. — checked October 4, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.