Herfair
USB C to Dual HDMI Adapter 4K@30Hz, 4-in-1 USB C Hub Multiport Adapter
Bottom line: The Herfair USB C to Dual HDMI Adapter 4K@30Hz: 4-in-1 hub: two HDMI outputs, USB-A 3.0, and 100W PD charging pass-through; main trade-off: won't work on Dell laptops or USB-C ports lacking DisplayPort Alt Mode.
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Pros & Cons
Pros
- ✓ 4-in-1 hub: two HDMI outputs, USB-A 3.0, and 100W PD charging pass-through
- ✓ Single HDMI output runs up to 4K@30Hz for a sharp external display
- ✓ USB-A 3.0 port hits 5Gbps for fast transfers and OTG peripherals
- ✓ Mirror and extend modes on both Windows (MST) and macOS (SST) laptops
Cons
- ✗ Won't work on Dell laptops or USB-C ports lacking DisplayPort Alt Mode
- ✗ Single display capped at 4K@30Hz, not the smoother 60Hz
- ✗ Running both monitors drops resolution to dual 1080p@60Hz max
- ✗ macOS limited to A-A-A or A-B-B; no independent A-B-C display setup
SpecPicks Verdict
SpecPicks scored Herfair USB C to Dual HDMI Adapter 4K@30Hz using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Herfair's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 𝐏𝐥𝐞𝐚𝐬𝐞 𝐞𝐧𝐬𝐮𝐫𝐞 𝐭𝐡𝐞 𝐔𝐒𝐁-𝐂 𝐩𝐨𝐫𝐭 𝐨𝐟 𝐲𝐨𝐮𝐫 𝐥𝐚𝐩𝐭𝐨𝐩 𝐬𝐮𝐩𝐩𝐨𝐫𝐭𝐬 𝐯𝐢𝐝𝐞𝐨 𝐨𝐮𝐭𝐩𝐮𝐭(𝐃𝐢𝐬𝐩𝐥𝐚𝐲𝐏𝐨𝐫𝐭 𝐀𝐥𝐭 𝐌𝐨𝐝𝐞), 𝐇𝐃𝐓𝐕 𝐢𝐬 𝐭𝐡𝐞 𝐬𝐚𝐦𝐞 𝐚𝐬 𝐇𝐃𝐌𝐈, 𝐚𝐥𝐬𝐨 𝐧𝐨𝐭 𝐟𝐢𝐭 𝐟𝐨𝐫 𝐃𝐞𝐥𝐥 𝐋𝐚𝐩𝐭𝐨𝐩𝐬【Multifunctional 4-in-1 USB C Hub】- Herfair USBC hub offers seamless connectivity with 2 HDMI ports up to 4K@30Hz, a USB A 3.0(5Gbps) port for fast data transfer and a powerful 100W PD charging port, all in one compact device
- 【Stunning Dual HDMI Display】- Herfair USB C to dual hdmi adapter supports both HDMI ports to be used at the same time, supports up to 4K@30Hz resolution when using one alone and dual 1080P@60Hz when using both. 𝐍𝐎𝐓𝐄：𝐓𝐨 𝐫𝐞𝐚𝐜𝐡 𝟒𝐊 𝐫𝐞𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐩𝐥𝐞𝐚𝐬𝐞 𝐞𝐧𝐬𝐮𝐫𝐞 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮𝐫 𝐝𝐞𝐯𝐢𝐜𝐞𝐬 (𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠 𝐥𝐚𝐩𝐭𝐨𝐩, 𝐜𝐚𝐛𝐥𝐞𝐬, 𝐚𝐧𝐝 𝐦𝐨𝐧𝐢𝐭𝐨𝐫𝐬) 𝐬𝐮𝐩𝐩𝐨𝐫𝐭𝐬 𝐇𝐃𝐌𝐈 𝟐.𝟎 𝐨𝐫 𝐡𝐢𝐠𝐡𝐞𝐫
- 【Multiple Display Modes & Functions】- Herfair USB C HDMI splitter for dual monitors supports both Mirror and Extend mode for MacOS (SST) and Windows (MST) laptops. A-A-A or A-B-B display for MacOS while A-A-A or A-B-B or A-B-C for Windows. 𝐍𝐎𝐓𝐄：𝐓𝐡𝐞 𝐌𝐚𝐜𝐎𝐒 𝐒𝐲𝐬𝐭𝐞𝐦 𝐝𝐨𝐞𝐬𝐧'𝐭 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 𝐌𝐒𝐓(𝐀-𝐁-𝐂) 𝐌𝐨𝐝𝐞
- 【Light-Speed 5Gbps Data Transfer】- Herfair HDMI to USB C adapter is equipped with a USB-A 3.0 port for 5Gbps high-speed file transfers and OTG function or just connect USB peripherals to achive more easier usage, ideal for professionals handling large data volumes with ease. 𝐍𝐎𝐓𝐄：𝐍𝐨𝐭 𝐬𝐮𝐩𝐩𝐨𝐫𝐭𝐬 𝐔𝐒𝐁 𝐟𝐥𝐚𝐬𝐡 𝐝𝐫𝐢𝐯𝐞𝐫 𝐜𝐚𝐩𝐚𝐜𝐢𝐭𝐲 𝐛𝐢𝐠𝐠𝐞𝐫 𝐭𝐡𝐚𝐧 𝟏𝐓𝐁
- 【Power Worry-free Charging】- Herfair Type C to hdmi converter supports up to 100W input and safely delivers 65W (approximate) to your laptop, keeping you powered while working or entertaining. 𝐍𝐎𝐓𝐄：𝐄𝐧𝐬𝐮𝐫𝐞 𝐲𝐨𝐮𝐫 𝐥𝐚𝐩𝐭𝐨𝐩'𝐬 𝐔𝐒𝐁-𝐂 𝐩𝐨𝐫𝐭 𝐬𝐮𝐩𝐩𝐨𝐫𝐭𝐬 𝐩𝐨𝐰𝐞𝐫 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲. 𝐔𝐬𝐞 𝐚 𝟔𝟓𝐖 𝐨𝐫 𝐡𝐢𝐠𝐡𝐞𝐫 𝐩𝐨𝐰𝐞𝐫 𝐚𝐝𝐚𝐩𝐭𝐞𝐫 𝐚𝐧𝐝 𝐜𝐚𝐛𝐥𝐞 (𝐧𝐨𝐭 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐝)
Full Specifications
| Brand | Herfair |
|---|---|
| Color | Green |
| Finish | Matte |
| Unit Count | 1 Count |
| Connectivity | USB-C |
| Model Number | usb-hubs |
| Compatibility | Mac |
| Connector Type | USB Type C |
| Mfr Part Number | usb-hubs |
| Number of Items | 1 |
| Number of Ports | 4 |
| Power Plug Type | No Plug |
| Compatible Devices | MacBook/Laptop with USB-C output port that supports video functions (NOT included Dell laptops) |
| Warranty Description | 18 Months Warranty by the seller |
| Specific Uses For Product | Extended Monitor Display for Laptop to Dual Screens (must connected directly to the USB-C port of your laptop, thru any hub/dock/dongle will not work) |
Ready to buy?
USB C to Dual HDMI Adapter 4K@30Hz, 4-in-1 USB C Hub Multiport Adapter is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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