Resolution and refresh rate are one figure, and the switching method is the other · review
TCNEWCL VGA4P, four-computer VGA switch with three USB 2.0 sockets review
A four-computer VGA switch with three USB 2.0 sockets and a single button, whose fourth bullet describes two computers and a different eight-port model.
The bottom line A usable four-machine VGA switch with the USB side properly described, sold behind a bullet that talks about two other products. The lead count is the thing to confirm before ordering rather than after.
On the listing
A four-computer USB and VGA switch controlling four machines with one keyboard, mouse, printer and screen, with the required input leads included and the VGA and USB leads combined two into one; an input of at most four computers and an output of one VGA socket and three USB 2.0 sockets, compatible with keyboards, mice, printers, scanners and drives; USB 2.0 transfer at up to 480 Mbps with backwards compatibility to USB 1.1; a single button with an indicator light; and compatibility given as Windows, macOS, Linux and Chrome OS.
The bullet that describes three products
The fourth one begins by explaining how to switch between two computers, on a unit whose own title accepts four. It then adds a note about an eight-port model supplied with a wired and a wireless remote. Neither of those is what arrives in this box, and nothing from either has been carried into the description above.
Counting leads
Two in the title, four machines on the page. A combined lead serves one computer. Four computers therefore want four of them. The first bullet says the required leads are included and gives no number; the title gives a number and it is two. The gap is the whole first evening of the installation.
What the page does well
The USB side is described properly: three sockets, the generation named, the rate quoted, the backwards compatibility stated. That is the part of a KVM most listings summarise as a hub and leave there.
Before ordering
Ask how many combined leads are in the box. On a four-computer switch that is the difference between working on delivery and waiting for a second parcel.
Availability
Priced from 30 € to 36 € across the German, French, Italian and Spanish Amazon stores the day this page was checked.
It is stocked on the British Amazon store as well, in that country’s own currency. The range above leaves those out: it counts euro stores and no others.
In the American Amazon catalogue with no live offer against it: the reference exists, nobody is filling it.
Every figure in this section is what Keepa held on the day this page was last updated. Stock and prices move without warning.
Prices quoted in this text were read on 10 September 2026. The live price is at the top of the page.
Where it holds up, and where it stops
Strengths
The USB sockets are counted and their generation and rate are both given, which is more than most of this shelf offers
Combined leads carrying VGA and USB together cut the number of cables on the desk in half
The indicator light is described as showing which computer is active, so the state of the switch is readable without guessing
Compromises
The title counts two leads for a switch that accepts four computers, and the first bullet claims the required leads are included without saying how many
The fourth bullet describes switching between two computers, and then describes an eight-port model with two remotes, neither of which is this product
No refresh rate and no audio connection anywhere on the page
Specifications
Port count
Four — stated in the title and in the second bullet, which gives the input as a maximum of four computers
Maximum resolution
1080p, described as Full HD — stated in the title. It is the ceiling of the switch alone, and the computers and the screen each impose their own
Refresh rate
Not published on the listing — no figure in Hz appears in the title or in any of the five bullets, so the resolution is given without the second half of the pair
Video connector type
VGA — stated in the title and in the second bullet, where the output is given as one VGA socket
Screens per computer
One — stated in the title as four computers to one screen
USB port count
Three — stated in the title and in the second bullet as three USB 2.0 sockets, named for a keyboard, a mouse, a printer and a flash drive
USB generation
USB 2.0, quoted at up to 480 Mbps and backwards compatible with USB 1.1 — stated in the third bullet
Switching method
One button on the unit, with an indicator light showing which computer is active — stated in the fourth bullet. That bullet describes switching between two computers on a four-computer unit, and its closing note describes an eight-port model supplied with a wired and a wireless remote, which is not the product in this title
Audio support
Not published on the listing — no audio socket and no speaker or microphone connection is named anywhere on the page
Cables supplied
Two combined leads, each carrying VGA and USB in one — stated in the title. The first bullet says instead that the required input leads are included, without giving a number, so the page counts two leads for a switch that accepts four computers
Amazon reference
B08D78LQ2K (same reference on 6 Amazon marketplaces)
EAN
0783914036555
The questions that come up before an order
Does USB 2.0 on the shared sockets matter?
It decides what is worth plugging into them. A keyboard, a mouse and a printer are comfortable at USB 2.0. A drive being moved between machines is not, because the generation sets the ceiling of the transfer regardless of how fast the drive is. This page states the generation and the rate, which is what makes the judgement possible.
How many leads does a four-computer switch need?
One video lead and one USB lead for each machine, or one combined lead per machine where the two are joined. That is four combined leads for four computers. This title names two, and the first bullet says the required leads are included, so the count is the question to settle with the seller.
four computers · one VGA screen · 1920 by 1440 · three USB 2.0 sockets · button or wired controller · four combined leads supplied
A four-computer VGA switch supplied with four combined leads and a desk controller, quoting a resolution above the usual 1080p ceiling and no refresh rate at all.
Best for: A desk running three or four machines on one screen where the switching should happen from the hand rather than from the unit, and where the keyboard is a plain one.
four computers · one VGA screen · 1920 by 1080 · push button only · a hub of uncounted sockets · no refresh rate printed
A four-computer VGA switch worked by a button on the front, whose resolution is printed in a form that leaves no room for a refresh rate.
Best for: A workshop or a back office keeping several older machines on one VGA screen, where a button on the front is the whole interface that is wanted.
four computers · one screen · 8K at 60 Hz and 4K at 144 Hz · HDMI 2.1 · four USB 3.0 at 5 Gbps · panel button or wired controller · four USB leads and an adapter supplied
A four-computer HDMI switch that publishes two resolution and rate pairs, supplies its USB leads and a power adapter, and says outright that the final figure depends on the machines.
Best for: A desk of four machines on one screen where fast peripherals move between them, and where the window arrangement has to survive every change of machine.
