Anker Laptop Docking Station Review
Discover the Anker Laptop Docking Station—a sleek 8-in-1 USB-C hub that transforms cord chaos into organized bliss with dual HDMI, ethernet, and speedy power.
Dual HDMI, Gigabit Ethernet, two USB-A, SD/MicroSD, and 85W pass-through in 3.2 ounces. The Anker PowerExpand 8-in-1 gives a USB-C laptop two monitor outputs, wired internet, two peripheral connections, and card readers without adding meaningful weight to the bag. Single HDMI runs at 4K@60Hz — sharp and smooth. Both HDMI ports connected simultaneously run at 4K@30Hz each, which is sharp but stutters on cursor movement and scrolling. Mac shows identical content on both external monitors — no independent extend. Windows extends or mirrors across both. 85W pass-through from a 100W charger you supply keeps the laptop charged while everything runs. At 3.2 ounces and 4.65 inches long, this hub travels in a laptop sleeve pocket and comes out whenever the desk has a monitor and a network drop.
Eight ports. Two HDMI (single 4K@60Hz or dual 4K@30Hz). Two USB-A. One USB-C PD (85W pass-through, charger not included). Gigabit Ethernet. SD/MicroSD. Aluminum. 3.2 oz. 4.65″ x 2.01″ x 0.69″. macOS 12+, Windows 10/11, ChromeOS. No Linux. 18-month warranty.
Key Specifications
| Specification | Detail |
|---|---|
| Total Ports | 8 |
| HDMI | 2 (single: 4K@60Hz; dual: 4K@30Hz each) |
| USB-A | 2 |
| USB-C PD | 85W pass-through (100W charger required, not included) |
| Gigabit Ethernet | 1 |
| SD Card Reader | 1 |
| MicroSD Card Reader | 1 |
| macOS Display | Both external monitors show identical content |
| Enclosure | Aluminum |
| Weight | 3.2 oz / 91g |
| Dimensions | 4.65″ L x 2.01″ W x 0.69″ H |
| Compatible OS | macOS 12+, Windows 10/11, ChromeOS |
| Not Compatible | Linux |
| Model | A83800A1 (PowerExpand 8-in-1) |
| Manufacturer | Anker |
| Warranty | 18 months |
Single vs Dual HDMI: 60Hz vs 30Hz
One monitor through one HDMI: 4K@60Hz. Smooth scrolling, responsive cursor, no stutter. Two monitors through both HDMI ports: 4K@30Hz on each. The bandwidth splits between two streams, and the refresh rate halves. 30Hz is fine for reference content — a document on the second screen, a chat window, a dashboard. For the primary working monitor where you type and scroll constantly, 30Hz is noticeable. On Windows, use one HDMI at 60Hz for the primary display and the second HDMI at 30Hz for reference if the stutter bothers you.
Ethernet and Card Readers in a Travel Hub
Gigabit Ethernet plus SD/MicroSD card readers at 3.2 ounces. Most travel hubs at this weight choose either Ethernet or card readers, not both. The Anker includes both. For a photographer who transfers cards and needs wired internet for large uploads, or a business traveler who needs a stable connection and dual monitors at a hotel desk, the 8-in-1 covers those needs without carrying separate adapters for each.
85W Pass-Through
The PD port accepts up to 100W from your charger and passes 85W to the laptop. The hub keeps 15W. MacBook Air charges at full speed. Most Windows ultrabooks charge at full speed. MacBook Pro 14″ charges at near full speed. A 100W PD charger and USB-C cable are required and not included. Without a charger connected, the hub draws power from the laptop’s battery.
Mac: Identical on Both Monitors
macOS shows the same content on both external HDMI monitors. You cannot put different windows on different screens through this hub on a Mac. The laptop screen shows its own content, but both externals mirror each other. For Mac independent dual display, a DisplayLink dock handles that with software rendering.
Drawbacks
| Consideration | Detail |
|---|---|
| Dual HDMI: 30Hz | Both monitors at 4K@30Hz when connected simultaneously. |
| Mac: Mirrors Only | Both external monitors show identical content on macOS. |
| No Charger Included | 100W PD charger and USB-C cable required separately. |
| No Linux | Not compatible. |
| Two USB-A Only | Keyboard and mouse fill both ports. No spare for a flash drive. |
| No Audio Jack | No 3.5mm audio output. |
Anker Lineup Position
The PowerExpand 8-in-1 sits between the Anker 555 (single 4K HDMI, same Ethernet and card readers) and the 14-in-1 (triple display, five USB-A) in Anker’s range. The 8-in-1 adds a second HDMI over the 555 while staying under 3.5 ounces. For more USB ports, the 14-in-1 provides five USB-A at 4.7 ounces. For the Anker 555, see the Anker 555 review. For the 14-in-1, see the Anker 14-in-1 review.
Who This Hub Is For
Windows users who need dual HDMI, Ethernet, card readers, and 85W charging from Anker at 3.2 ounces: The PowerExpand 8-in-1 provides dual 4K monitors, wired internet, card transfers, two USB peripherals, and pass-through charging in aluminum lighter than a phone. 18-month Anker warranty.
Mac users who need independent extended displays, buyers who need more than two USB ports, or anyone who needs 60Hz on dual monitors: Mac mirrors. Two USB-A may not cover a full desk. Dual HDMI runs at 30Hz. For those needs, see the docking stations hub page.
Final Verdict
The Anker PowerExpand 8-in-1 provides dual HDMI, Ethernet, card readers, two USB-A, and 85W pass-through at 3.2 ounces in aluminum. Single HDMI at 4K@60Hz for one clean monitor. Dual HDMI at 4K@30Hz for two screens with the 30Hz trade-off. Ethernet and card readers together in a travel hub is uncommon at this weight. Mac mirrors both externals. Windows extends independently. For the buyer who needs Anker’s dual-HDMI hub with Ethernet and card readers at travel weight, the PowerExpand 8-in-1 handles that with an 18-month warranty.
Frequently Asked Questions
Can both monitors run at 4K@60Hz?
No. Single HDMI runs at 4K@60Hz. Both HDMI ports connected simultaneously run at 4K@30Hz each.
Does this extend displays on Mac?
No. Both external monitors show identical content on macOS. The laptop screen shows different content from the externals.
Is a charger included?
No. A 100W PD charger and USB-C cable are required separately for pass-through charging.
How is this different from the Anker 555?
The 555 has one HDMI at 4K@60Hz. The PowerExpand 8-in-1 has two HDMI ports (single at 60Hz, dual at 30Hz). Both include Ethernet and card readers at similar weight.
Disclosure: As an Amazon Associate, I earn from qualifying purchases.
Docking Station Intelligence
The standards are confusing by design. These three panels decode what manufacturers won’t explain clearly. Applicable to every docking station.
The USB-C Confusion Matrix
The USB-C connector is the single greatest source of buyer confusion in docking stations. The physical plug looks identical whether it carries USB 2.0 at 480 Mbps or Thunderbolt 5 at 120 Gbps — a 250x difference in capability hidden behind the same shape. Manufacturers exploit this by labeling everything "USB-C compatible" without specifying which protocol runs through it. Two docks can look identical on the outside and behave completely differently once you plug them in.
The hierarchy matters because it determines everything: how many monitors your dock can drive, how fast files transfer, whether your laptop charges while docked, and whether you need third-party drivers. Here is the real capability ladder, from slowest to fastest:
The practical takeaway: if your laptop has Thunderbolt 4, buy a Thunderbolt dock. If it only has generic USB-C, verify whether it supports DisplayPort Alt Mode before buying anything with multi-monitor claims. Our buying guide walks through verification steps for every major laptop brand.
Power Delivery: What the Watts Mean
Power Delivery (PD) determines whether your docking station can charge your laptop while you work, or whether you need a separate charger cluttering your desk. The math is simple but rarely explained: your laptop draws a specific wattage under load, and the dock must match or exceed it. If the dock delivers less than your laptop needs, the battery slowly drains even while plugged in — defeating the purpose of a docking station entirely.
Most ultrabooks need 45–65W. Standard business laptops need 65–100W. Gaming and workstation laptops can demand 100–140W or more. The dock’s advertised PD wattage is the maximum it can deliver to your laptop — but this drops if you charge other devices (phones, tablets) through the dock simultaneously. Always leave a 15–20W margin above your laptop’s requirement.
Check your laptop’s original charger wattage — that’s your baseline. Our FAQ covers how to find this for every major brand.
Native Display vs DisplayLink: The Hidden Factor
This is the decision most buyers don’t know they’re making. When a docking station outputs video to your monitors, it uses one of two fundamentally different methods: native (the dock passes your laptop’s GPU signal directly to the monitor) or DisplayLink (the dock compresses video over USB and a software driver renders it). The difference is invisible in marketing materials but profoundly affects your daily experience.
Native output through DisplayPort Alt Mode or Thunderbolt uses your laptop’s actual graphics hardware. There is zero added latency, full DRM support for streaming services, no CPU overhead, and no driver to install. DisplayLink, by contrast, adds 5–15ms of latency (noticeable in video calls and cursor movement), blocks DRM content on connected monitors (Netflix, Disney+ show black screens), consumes 3–8% of your CPU constantly, and requires a driver that Apple’s macOS security updates occasionally break.
DisplayLink exists for one reason: Apple Silicon base chips (M1, M2, M3) can only drive one external display natively. If you need two or more monitors on a base MacBook Air or 13” MacBook Pro, DisplayLink is your only option. For everyone else — Windows users, Mac Pro/Max chip users, Intel/AMD laptops — native is always the better choice.
Native (Alt Mode / Thunderbolt)
DisplayLink (USB compression)
The bottom line: if your laptop supports native multi-display output, always choose a native dock. DisplayLink is a workaround, not an upgrade. See our glossary for detailed definitions.
COMMAND CENTERCOMMAND CENTER
Six tools that decode the confusion manufacturers create. Port protocols, power budgets, display configurations, compatibility, desk planning, and future-proofing. Full buying guide →
Port Protocol DecoderWhat does your connection type actually support? Glossary
Power Delivery CalculatorCan this dock keep your laptop charged?
Display Configuration PlannerCan your dock push enough pixels?
Laptop-to-Dock CompatibilityWill this dock work with YOUR laptop?
Desk Setup ArchitectWhat ports do you actually need?
Select everything you need to connect: