Connecting two external monitors to a Mac should be simple. Unfortunately, depending on which Mac you own, getting everything working can involve additional software, expensive docking stations, or discovering that your computer doesn’t support the display configuration you wanted in the first place.
Satechi is looking to make things easier with its new ExtendView USB4 Dual HDMI Multiport Adapter. Available from Amazon for $119.99, this compact accessory promises to drive two external 4K monitors at 60Hz without requiring DisplayLink software, special drivers, or background applications. For Mac users who have grown tired of dealing with external display limitations, that sounds pretty appealing.
The adapter takes advantage of USB4 to deliver two independent extended displays through a single USB-C connection. That distinction matters because the monitors can display different content rather than simply mirroring the same desktop. You could have a browser open on one screen, an editing application on another, and your MacBook’s built-in display available for something else.
However, there is an important catch. Not every Mac can take advantage of those dual-monitor capabilities.
According to Satechi, the ExtendView supports two extended displays on Macs equipped with Apple’s M3, M4, M5, and M6 chips. Most compatible Windows computers with USB4 are supported as well. Owners of base M1 and M2 Macs, however, are limited to a single extended display. The same single-display limitation applies to iPadOS.
In other words, this adapter doesn’t magically eliminate Apple’s hardware restrictions. If your Mac doesn’t support the required display configuration, buying a $119.99 accessory won’t change that. Anyone hoping to turn an older base M1 MacBook Air into a dual-monitor workstation should pay particular attention before ordering.
Beyond its two HDMI outputs, Satechi has included USB-C Power Delivery pass-through charging rated at up to 140W. That’s a generous amount of power for an adapter this size, although users will still need an appropriate charger and compatible computer to take advantage of it.
There are also USB-A and USB-C data connections offering speeds of up to 10Gbps. That should make the adapter useful for connecting external storage, transferring large files, and handling other peripherals without constantly swapping cables.
One detail I particularly like is the physical design. Satechi uses a Space Black anodized aluminum enclosure with a textured top surface and an attached braided nylon cable. There’s even a built-in storage slot for the USB-C connector, allowing the cable to tuck away when the adapter isn’t being used.
That might sound like a minor convenience, but anyone who regularly carries adapters between home and the office can appreciate having fewer loose cables to deal with. The dark aluminum finish also looks especially nice alongside Apple’s darker Mac hardware.
Satechi co-founder and president Brock Guclu explains the thinking behind the product:
“Adding two external monitors shouldn’t feel like a troubleshooting session,” said Guclu. “The ExtendView™ USB4 Dual HDMI Multiport Adapter takes full advantage of USB4’s native display engine, giving users a smoother, more practical way to expand their workspace without added software layers. Just plug in, and your workspace expands instantly. That’s the way it was always meant to work.”
The lack of DisplayLink is arguably the biggest selling point here. DisplayLink-based accessories can be useful for getting around certain display limitations, but they require additional software. A native connection avoids that dependency, which is particularly appealing for people who prefer keeping their systems free of unnecessary background utilities.
Satechi also lists ChromeOS compatibility, although the company specifically highlights dual extended display support for modern Macs and most Windows USB4 devices. Chromebook owners should verify their particular hardware’s display capabilities rather than assume two external 4K screens will work automatically.
At $119.99, the ExtendView isn’t exactly an impulse purchase. You can certainly find cheaper USB-C adapters with HDMI ports. However, the combination of two 4K/60Hz outputs, 140W pass-through charging, 10Gbps connectivity, and driver-free operation could justify the price for someone who regularly works with multiple displays.
The biggest question is whether your computer can actually take advantage of everything the adapter offers. For owners of compatible modern Macs, Satechi’s new accessory looks like a convenient way to expand a desktop without installing additional software. For people with older Apple Silicon machines, the limitations make it a much less compelling purchase.
Affiliate disclosure: This article contains Amazon affiliate links. If you make a purchase through these links, NERDS.xyz may earn a commission at no additional cost to you.
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