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AV Access iDock C20 review

A docking station that switches as well, carrying two screens, Ethernet, an SD slot, a headset jack and 60 W of charging for each laptop, and publishing no refresh rate at all.

This is the only unit on this shelf that is a docking station first. The second bullet counts twelve connections: two USB 3.0 sockets, four USB 2.0, one USB-C, one gigabit Ethernet port, one 3.5 mm (0.14 in) headset jack, one SD card slot and two HDMI outputs. Four of those classes of socket — Ethernet, the card slot, the headset jack and a published count above four — appear on no other listing here.

The two laptops arrive over USB-C. The third bullet gives the two full-featured USB-C ports at 20 Gbps, video in at 4K UHD and data at up to 5 Gbps, and states that each laptop can be charged at up to 60 W while staying on the network through the dock’s own Ethernet port. One lead each, doing four jobs. Nothing else on this shelf charges anything.

What the page does not publish is a refresh rate. Four of the thirteen listings on this shelf leave that figure out, and this is one of them: 4K UHD appears with no figure in hertz beside it anywhere on the page. The compatibility notes in the last bullet add three limits that matter more than a rate would. Dual displays need a laptop supporting DP Alt Mode and DP MST. Under macOS the two screens mirror only — they will not extend. And on a 49-inch ultrawide screen the maximum is 3840 by 1080, which is well under the 4K the rest of the page quotes.

Switching is one button on the front, stated in the fourth bullet, which gives two to three seconds for the change and names EDID emulation and an automatic wake-up of the sleeping machine. A wired remote controller exists, and the same bullet states that it is sold separately — it even prints its ASIN so it can be found. This is the only unit on this shelf whose second switching method has to be bought.

The box holds the dock, a 20 V 10 A power adapter, two 1 m (3 ft) USB-C to USB-C leads and a manual, with a twelve-month warranty, stated in the seventh bullet. That bullet also insists that the supplied leads be the ones used, which on a 20 Gbps video-carrying USB-C link is a condition rather than a preference. No HDMI lead is named, so the two screens still need their own.

At a recorded 1,760 g (62.1 oz) this is by some distance the heaviest of the units here with a recorded weight — three times the GL.iNet and nearly thirty times the CMSTEDCD — and the 20 V 10 A adapter explains why: two laptops at 60 W each have to come from somewhere.

Where it holds up, and where it stops

Strengths

  • Gigabit Ethernet, an SD card slot and a 3.5 mm (0.14 in) headset jack, none of which appears on any other listing on this shelf
  • Charges each laptop at up to 60 W over the same USB-C lead that carries its video and data
  • Seven USB sockets published with their generations, the largest counted provision on this shelf
  • Two screens for each machine, with EDID emulation and an automatic wake-up of the sleeping laptop named in the same bullet as the two-to-three-second change
  • The compatibility notes name the three cases that will disappoint — no DP MST, macOS, and a 49-inch ultrawide — before the order rather than after it

Compromises

  • No refresh rate anywhere on the page, so the 4K figure cannot be read as the pair it belongs to
  • The second switching method, a wired remote, is sold separately — the only one on this shelf that has to be bought
  • Under macOS the two screens mirror only, and a 49-inch ultrawide is capped at 3840 by 1080 rather than 4K
  • No HDMI lead among the contents, and the supplied USB-C leads are the ones the page insists be used
  • 1,760 g (62.1 oz), the heaviest of the American listings here, with a 20 V 10 A adapter that is the largest supply published on this shelf

Specifications

Port countTwo — stated in the title and in the first bullet as two laptops controlled through one dual-monitor setup, keyboard, mouse and set of peripherals
Maximum resolution4K UHD — stated in the third bullet for video arriving over the full-featured USB-C ports. The last bullet limits a 49-inch ultrawide screen to 3840 by 1080, and states that macOS machines mirror the two displays rather than extending them
Refresh rateNot published on the listing — no figure in hertz appears in the title or in any of the seven bullets, so the 4K figure stands without the second half of the pair
Video connector typeUSB-C in, HDMI out — two full-featured USB-C ports at 20 Gbps carry video and data from the laptops, stated in the third bullet, and two HDMI outputs feed the screens, counted among the twelve connections in the second
Screens per computerTwo — stated in the title and in the first bullet. The last bullet requires a laptop supporting DP Alt Mode and DP MST for both to extend, and states that macOS mirrors only
USB port countSeven — stated in the second bullet as two USB 3.0, four USB 2.0 and one USB-C, within a twelve-in-one count that also includes gigabit Ethernet, a 3.5 mm (0.14 in) headset jack, an SD card slot and two HDMI outputs
USB generationMixed — USB 3.0 on two sockets and USB 2.0 on four, stated in the second bullet; the third quotes the two USB-C input ports at 20 Gbps and data transfer at up to 5 Gbps
Switching methodOne in the box — a button on the front, stated in the fourth bullet as a two-to-three-second change with EDID emulation and automatic wake-up of the machine. A wired remote controller is named in the same bullet as sold separately, with its ASIN printed on the page
Audio supportA 3.5 mm (0.14 in) headset socket — counted among the twelve connections in the second bullet. No channel arrangement is given, and no bullet says whether the audio follows the video when the machine is changed
Cables suppliedA 20 V 10 A power adapter, two USB-C to USB-C leads of 1 m (3 ft) and a manual, stated in the seventh bullet with a twelve-month warranty. That bullet requires the supplied leads be used. No HDMI lead is named
Amazon referenceB0CP4PD3SM
EAN0850064145786
On Amazon.comAmazon.com had an offer at $260 on October 26, 2026.

The questions that come up before an order

Is a refresh rate published?

No. The page quotes 4K UHD video over the USB-C ports and no figure in hertz appears anywhere in the title or the seven bullets.

Does the remote come with it?

No. The fourth bullet states that the wired remote controller is sold separately and prints its ASIN. The button on the front is the switching method included.

Will two screens extend on a Mac?

The last bullet states that because of macOS limitations, Mac models support mirrored displays only. Extending the two screens requires a laptop supporting DP Alt Mode and DP MST.

What does it charge?

The third bullet states up to 60 W for each of the two laptops, delivered over the same USB-C lead that carries video and data, with the network reaching them through the dock’s Ethernet port.

Against the rest of the network and storage gear

This network and storage gear share the category and the price bracket. Only what each one states is shown; an incomplete column would mislead.

Model Price Port countMaximum resolutionRefresh rateVideo connector type
AV Access iDock C20 $260 Two — stated in the title and in the first bullet as two laptops controlled through one dual-monitor setup, keyboard, mouse and set of peripherals4K UHD — stated in the third bullet for video arriving over the full-featured USB-C ports. The last bullet limits a 49-inch ultrawide screen to 3840 by 1080, and states that macOS machines mirror the two displays rather than extending themNot published on the listing — no figure in hertz appears in the title or in any of the seven bullets, so the 4K figure stands without the second half of the pairUSB-C in, HDMI out — two full-featured USB-C ports at 20 Gbps carry video and data from the laptops, stated in the third bullet, and two HDMI outputs feed the screens, counted among the twelve connections in the second
GL.iNet Comet X GL-RM4PE $280 Four — stated in the title and in the second bullet as up to four host systems, through four HDMI inputs and four dedicated USB Type-C device ports4K on the loop-out — stated in the third bullet as up to 4K@30FPS for the HDMI loop-out that feeds a local monitor. No resolution is published anywhere on the page for the four inputs themselves30, written as FPS rather than Hz — stated in the third bullet as part of 4K@30FPS, and the only rate on this shelf given in frames per second. It describes the loop-out, not the inputsHDMI — four HDMI inputs and one HDMI loop-out, stated in the second and third bullets, with a USB Type-C device port for each host carrying the keyboard and mouse side
ANGEET ONE-KVM 2-port $140 Two — stated in the title and in the first bullet as two controlled computers, with remote switching between the two hosts3840 by 2160 — stated in the ninth bullet together with its rate. It is the ceiling of the switch alone; the computers and the screen each impose their own60 Hz at 3840 by 2160 — stated in the ninth bullet as a pair, which is the form in which the two figures can be read together. The same bullet quotes a delay of under 60 ms, which is the maker’s claim and not a measurement made hereHDMI — stated in the second bullet, which names HDMI, USB and DuPont leads between the unit and the two computers; the eighth adds a local monitor loop-out
UGREEN AK700, two-computer DisplayPort switch driving two screens $90 Two — stated in the title and in the first bullet as two desktop computers8K — stated in the title and in the second bullet as up to 8K at 60 Hz, backwards compatible with 8K at 30 Hz, 4K, 1080p, 720p and 480p. It is the ceiling of the switch alone; the computers and the screens each impose their own60 Hz at 8K, with 8K at 30 Hz also named — stated in the second bullet as pairs, which is the form in which the two figures can be read togetherDisplayPort 1.4 — stated in the second bullet; the first bullet states in as many words that this switch has no HDMI socket

What separates the models, in network and storage gear

  • If price decides: UGREEN AK700, two-computer DisplayPort switch driving two screens, at $90.

The buyer this one serves, among network and storage gear

A desk where a work laptop and a personal one share two screens, the network, the card reader and a charger as well as the keyboard.

What this one costs among network and storage gear

Details checked on October 26, 2026.

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 300.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for network and storage gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

What we look at on this network and storage gear

Every price named in a summary was read on the date that review carries. What a shop asks today is shown beside the product, and it moves.