Newmight Dual HDMI Adapter Review
Upgrade your desk with the Newmight Dual HDMI Adapter. This docking station transforms your workspace into a sleek, functional haven. Perfect for multitaskers!
Two HDMI outputs, a USB-A port and 100W pass-through charging in a bar of anodized aluminum that weighs 40 grams. The Newmight 4-in-1 is the smallest dual-HDMI adapter on this site and one of the cheapest. It does one job: turn a single USB-C port into two monitor outputs, at 4K@60Hz on one screen or 4K@30Hz on two. On Windows the two HDMI ports run independent extended desktops through MST. On macOS they mirror, and Newmight says so in bold in its own listing: A-A-A or A-B-B, never A-B-C. A Mac user gets two screens showing the same thing, not two workspaces.
Four ports. Two HDMI. One USB-A at 5 Gbps. One USB-C PD at up to 100W. All usable at once. DP Alt Mode required on the laptop. Plug and play, no driver. 3.94 by 1.18 by 0.47 inches. Twelve-month warranty with lifetime technical support from Newmight. What it does not have, and what the 9-in-1 it replaces did: Ethernet, card readers, and two more USB ports.
USB C Dual HDMI Adapter for 2 Monitors, Newmight 4-in-1 USB C to Dual Monitor HDMI Splitter, Supports Single 4K 60Hz and Dual 4K 30Hz, 100W PD, USB-A Port for MacBook, HP, Dell, iPhone 15/16 Series
Key Specifications
| Specification | Detail |
|---|---|
| Total Ports | 4 |
| HDMI | 2 |
| Single Monitor | 4K@60Hz |
| Dual Monitor | 4K@30Hz each |
| USB-A | 1 (5 Gbps) |
| USB-C PD | 1 (up to 100W pass-through) |
| Ethernet | None |
| Card Readers | None |
| Display: Windows | Extend or duplicate across two monitors (MST, independent screens) |
| Display: macOS | Mirror only (A-A-A or A-B-B); no MST |
| Minimum macOS | 12 Monterey |
| DP Alt Mode Required | Yes |
| Enclosure | Anodized aluminum alloy |
| Weight | 40 grams / 1.4 oz |
| Dimensions | 3.94″ L x 1.18″ W x 0.47″ H |
| Compatible Devices | MacBook Pro/Air 2016+, Dell XPS, HP Spectre, ThinkPad, Surface Book 2, Chromebook Pixel, iPhone 15/16 (USB-C with DP Alt Mode) |
| Model | Newmight dual 4-in-1 |
| Warranty | 1 year + lifetime technical support |
Dual HDMI on Windows: Independent Extend
On a Windows laptop whose USB-C port carries video, the two HDMI ports behave like two graphics outputs. Each monitor gets its own desktop, at 4K@30Hz when both are connected or 4K@60Hz if you use only one. Nothing to install; the second screen appears a few seconds after the cable goes in. That is the whole appeal of a dual-HDMI adapter for a Windows user, and at 40 grams this one asks nothing in return for carrying it.
30Hz is the price of two 4K streams over one USB-C cable at this price. It suits documents, code, spreadsheets and email, where the screen mostly sits still. It shows in scrolling and cursor movement, and it is wrong for video editing. If you need 4K@60Hz on both monitors, the iVANKY EdgeDock 1 does it for considerably more money.
macOS: Mirror Only
Newmight is unusually direct about this. The listing states that every MacBook can only mirror across the two HDMI ports, in A-A-A or A-B-B arrangements, and that MST (A-B-C, three different screens) is not supported on macOS. One bullet mentions extend in SST mode on a Mac; read alongside the note, that means one extended display, duplicated on the second port. In practice this adapter is a single-monitor device on a Mac, with a spare mirrored output for a presentation screen.
Newmight adds that the same limit applies to every dock of this type on the market, because it comes from macOS rather than from the hardware. That is true for MST adapters. Mac users who want two independent external screens need a DisplayLink dock, or an M-series Pro or Max machine with a Thunderbolt dock. For those options see our docking stations hub page.
40 Grams: The Adapter Disappears
At 40 grams and just under four inches long, the Newmight is lighter than any dual-HDMI hub we have covered, including the 100-gram 9-in-1 it replaces. It lives in the laptop sleeve’s pen pocket. The anodized aluminum shell resists scratches and fingerprints and sheds heat, which matters when two 4K streams and 100W of charging pass through something the size of a lighter.
100W PD Charging and One USB Port
The USB-C PD port passes your charger’s power through to the laptop, up to 100W. Newmight does not say how much the adapter itself draws, so budget for a little less than the charger’s rating. No charger is included; you supply your own. The single USB-A port runs at 5 Gbps, enough for a mouse receiver, a keyboard or a flash drive, but it is the only one, so a wired keyboard and a drive at the same time means choosing.
Drawbacks
| Consideration | Detail |
|---|---|
| macOS: Mirror Only | No independent second screen on any MacBook. Newmight states this plainly. |
| No Ethernet, No Card Readers | The 9-in-1 had both. This is a display adapter, not a desk dock. |
| One USB-A Port | 5 Gbps, and only one. |
| 4K@30Hz on Dual | 60Hz only with a single monitor. |
| DP Alt Mode Required | Not all USB-C ports carry video. |
| Charger Not Included | PD is pass-through; bring your own 100W charger. |
Who This Adapter Is For
Windows laptop owners who need two monitors from one USB-C port and nothing else: Dual 4K@30Hz, independent extend, 100W charging through the same cable, a USB port for a mouse, and an adapter you will forget is in the bag. At this price it is the cheapest way on this site to add a second screen to a Windows laptop. For dual HDMI at 4K@60Hz, see the iVANKY EdgeDock 1 review.
Anyone who needs Ethernet, card readers, or more than one USB device: This is where the 9-in-1 used to sit, and Newmight no longer sells it. A hub with Ethernet and readers costs more and weighs more; the options are on our docking stations hub page.
Mac users who need two independent external displays: Not this, nor any MST adapter. DisplayLink docks, or a Pro or Max chip with a Thunderbolt dock.
Final Verdict
The Newmight 4-in-1 strips the dual-HDMI hub down to what most people actually plug in: two monitors, a charger and a mouse. It does that at 40 grams, in aluminum, with a warranty and a support line, for the price of a cable. On Windows it delivers exactly what the box says. On macOS it is honest about delivering less, which is more than most listings manage.
The trade is everything else. No Ethernet, no card slots, one USB port. If the 9-in-1’s port count was the reason you came to this page, this is a different product for a different bag. If two screens on a Windows laptop for under twenty dollars is the reason, this is the one to carry.
Frequently Asked Questions
Can I extend two different screens on my MacBook?
No. Newmight states that every MacBook can only mirror across the two HDMI ports (A-A-A or A-B-B). For two independent displays on a Mac, use a DisplayLink dock or a Thunderbolt dock with an M-series Pro or Max chip.
Why is dual output 4K@30Hz and not 60Hz?
Two 4K@60Hz streams need more bandwidth than one USB-C connection carries through an MST adapter at this price. One monitor gets 4K@60Hz; add the second and both drop to 30Hz. For dual 4K@60Hz, the iVANKY EdgeDock 1 provides it.
Is a charger included?
No. The PD port passes power through from your own USB-C charger, up to 100W.
How does this compare to the Newmight 9-in-1 it replaces?
Same dual HDMI at 4K@30Hz, same 100W pass-through, same macOS limit. Gone are Gigabit Ethernet, the SD and TF readers, and two of the three USB ports. In return it weighs 40 grams instead of 100 and costs a fraction of the price.
Disclosure: As an Amazon Associate, I earn from qualifying purchases.
I evaluate docking stations the way they actually get used — against real bandwidth budgets, power-delivery ceilings, and the OS handshakes that quietly cap what a port can do — not spec-sheet promises. Every constraint that can break a multi-display setup is disclosed before any affiliate link.
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.
Check the laptop manufacturer’s recommended power supply and the dock’s rated host power. Shared charging budgets vary by dock: powering peripherals does not reduce host charging on every model. USB-C charging also depends on the laptop, cable and negotiated power profile. A lower-power supply may charge slowly or allow battery drain under load; a fixed 15–20W margin is not a universal 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 the host graphics system. DisplayLink transports encoded display data over USB using compatible software. Its responsiveness and CPU/GPU load vary with the computer, software, resolution and workload; fixed latency, CPU and battery percentages are not universal specifications. Protected-video playback also depends on the display path, operating system and service. Check DisplayLink system requirements for your configuration.
DisplayLink can add displays through compatible USB connections, including USB-A, and can serve systems with limited native display outputs. Native limits depend on the exact computer and operating mode. For example, M3 MacBook Air and MacBook Pro support two external displays with the lid closed under Apple’s stated conditions. Choose the display method against your computer, software permissions and workload.
Native (Alt Mode / Thunderbolt)
DisplayLink (USB compression)
Choose a native or DisplayLink dock by checking the exact host, dock, operating system and monitor combination. Native output is often preferable for latency-sensitive workloads; DisplayLink can be useful for additional productivity displays and compatible USB-A hosts. Neither connector shape nor a generic bandwidth number proves compatibility.
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: