SKU: 69893028490

Simplecom DA330 USB-C to Dual HDMI MST Adapter 4K@60Hz with PD and Audio Out

$39.60 $44.00
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Description

Simplecom DA330 USB-C to Dual HDMI MST Adapter 4K@60Hz with PD and Audio OutFeatures DA330 is a USB C multiport MST (Multi Stream Transport) adapter offers dual HDMI outputs, USB C Power Delivery, and 3. 5mm audio output. It allows you to connect 2 screens simultaneously and supports both extend and mirror modes for Windows system. DA330 supports display resolutions up to 4K@60Hz when single display is connected, and up to 4K@30Hz when two displays are connected. It also supports Power Delivery up to 100W charging via the USB

Features

DA330 is a USB-C multiport MST (Multi Stream Transport) adapter offers dual HDMI outputs, USB-C Power Delivery, and 3.5mm audio output. It allows you to connect 2 screens simultaneously and supports both extend and mirror modes for Windows system.
DA330 supports display resolutions up to 4K@60Hz when single display is connected, and up to 4K@30Hz when two displays are connected. It also supports Power Delivery up to 100W charging via the USB-C port and one 3.5mm headphone jack for audio output.
Don't be restricted to the small screen on laptop, this adapter can significantly increase productivity by adding two screens to your laptop and ideal for multi-tasking. It’s a great solution for work or home office to display independent content on extra screens, and makes multi-tasking easier.
Support MST (Multi Stream Transport) for mirror or extended screen mode
Connect 2 HDMI displays to your computer through a single USB-C port
Support 2 mirrored screens or 2 extended screens
Significantly increase productivity by adding multiple screens
Support resolutions up to 4K@60Hz when single display is connected
Support resolutions up to 4K@30Hz when two displays are connected
Power Delivery supports up to 100W charging via the USB-C port
3.5mm headphone jack for audio output
Plug and Play, no driver or software required
Aluminum casing, durable and better heat dissipation
MST supports Windows only, MacOS supports one extended screen only

Specifications

Material: Aluminum
Connection Ports: 2xHDMI, 3.5mm Audio, USB-C, USB-C PD
HDMI Resolution (1 Display): Support up to 3840x2160 at 60Hz (4K@60Hz)
HDMI Resolution (2 Displays): Support up to 3840x2160 at 30Hz (4K@30Hz)
PD Charging: 1x USB-C Female (for charging only), up to 100W
Operation Temperature: 0 - 50°C
Cable Length: 10cm approx.
Dimension: 6.2cm x 5.2cm x 1.5cm
System Requirements
Available USB-C port with DP Alt Mode (DisplayPort Alternate Mode) support
Windows 8 or above is required for MST and 2 Extended Screen support
MacOS does not support MST technology and will only support one extended output

Note

Before purchasing, please confirm the USB-C port on your device supports DisplayPort Alternate Mode (DP Alt Mode). Some USB-C ports only work for charging or data transfer, no video output function
4K@60Hz resolution only can be supported when single display is connected
The USB-C Female port is for PD Charging only, not for data transfer
Please connect power delivery adapter when power is not enough

Package Content

1x Simplecom DA330 USB-C to Dual HDMI MST Adapter 4K@60Hz with PD and Audio Out

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69893028490

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4.6 ★★★★★
Based on 1376 reviews
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Product Reviews
M
Verified Purchase
Marcos Castillo
Dallas, US
★★★★★ 5
Comparable to Higher-End Chairs, Solid Build and Support Without the Premium Price
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
I’ve been using this chair for a bit now and it’s been a genuinely upgrade. The build quality stands out right away, it has real heft and doesn’t feel cheap or hollow. Everything fits together cleanly and once assembled it feels stable and planted. I’m over 6 ft and 200+ lbs and it handles that without any issue, no creaking or sense that it’s being pushed to its limits. There’s enough space in the seat and back that you don’t feel boxed in. I added an extra ergonomic cushion and it still feels roomy, which isn’t always the case with chairs in this category. The adjustability helps a lot here, especially the lumbar support. Being able to move it up and down and also forward and back makes it easy to actually get it where you need it, instead of just accepting a fixed position. The armrests are also easy to dial in, especially if you’re switching between typing, reading, or leaning back a bit. The tilt range is useful, and the tilt tension is stronger than I expected. Even at my size it takes a bit of effort to lean back, which I see as a positive since it feels controlled and supportive rather than loose or overly easy to recline. The mesh is another strong point. It came in perfect condition, no snags, no loose threads, no rough edges anywhere. There weren’t any bits of untrimmed plastic on the frame either, which says a lot about the quality control. The mesh itself is taut with a bit of bounce, so it doesn’t sag but still has some give, which makes long sitting sessions more comfortable. Assembly was straightforward and clearly thought through. The instructions are easy to follow, but what stood out were the built in redundancies that keep you from second guessing anything. There are multiple left and right indicators when installing the arms, a clear front facing marker for the gas lift, and the screws are labeled in the packaging so you’re not guessing which goes where. It’s one of the smoother assembly experiences I’ve had. I also reached out to activate my warranty and had a very positive experience. I spoke with Alice who was very knowledgeable, quick, warm, and they went out of their way to help me with whatever I needed. When I inquired about the extra screw holes under the chair, she let me know that this was for a foot rest which was still in the production phase and unprompted offered to have one shipped to me when they were ready! There is an excellent team behind the product. Overall: well built chair with good materials, thoughtful design choices, and good adjustability to make it work for different setups. It feels durable, comfortable over longer periods, and especially well suited if you need something that can handle a larger frame without sacrificing support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
M
Verified Purchase
M. T.
Birmingham, US
★★★★★ 5
Excellent chair/great support.
Color: Black Full Mesh, Style: Executive
Excellent, comfortable chair! I was surprised at how easy it was to assemble---but the directions were super clear and all the pieces and parts were labeled. Once I received the chair, I was also surprised with the email follow up from Alice at Molents. All this for a reasonably priced chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
S
Verified Purchase
SL
Carnegie, US
★★★★★ 4
Great Ergonomic Support and Fit, with Minor Adjustment Caveats
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
As someone who is 5'4" and 140 lbs, the size of the chair feels ideal, and the seat cushion is spacious without feeling overwhelmingly large. The breathable mesh material is high quality, keeping me cool during long working sessions while still feeling sturdy. The back support and adjustable lumbar feature aligns perfectly with my spine and has noticeably reduced my posture fatigue. The height adjustment mechanism operates smoothly to align perfectly with my desk, and the assembly process was surprisingly straightforward, taking less than 20 minutes with clear instructions and tools included. My only slight hesitations are regarding armrests not being long enough. The wheels are not easy to roll on carpet and require a bit of extra effort to move. Maybe a chair mat might be helpful on carpeted floors. However, for the price, the comfort and build are impressive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
J
Verified Purchase
JFH
Natrona Heights, US
★★★★★ 5
High quality and incredible customer service
Color: Black Full Mesh, Style: Executive
This is an extremely well made chair at a very competitive price. The packaging, assembly instructions, as well as the way the hardware was packaged and labeled is probably the best I've seen. I'm particular about tools, and the included allen wrench was better than the normal "included tools" so much so that i actually used it rather than one of my own. The assembly was easy, and the chair itself looks and feels very high quality, and is very comfortable. Perhaps best of all was the level of customer service. I emailed on a weekend to activate the warranty and request the free cushion they offer. I got a personal response in less than a day and they offered upgraded wheels for free as well. This is a company worth doing business with.
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Reviewed in the United States on April 5, 2026
M
Verified Purchase
Michael Verbeke
West Palm Beach, US
★★★★★ 5
Great product AND customer service!
Color: Black Full Mesh, Style: Executive
I'm having a hard time writing this review because I can't tell which one I like better: the product or the customer service! I work on a computer all day, so a comfortable office chair is critical for me. This chair is great - it's adjustable in every way I need it to be, especially the armrests. The breathable mesh is both durable and supportive, and is more comfortable to sit in than the "overstuffed" chair it replaced. Let me just say: no company provides better customer service than MOLENTS. Right after assembling my chair (which was very easy, btw), I registered for the 2 year warranty they offer. The NEXT DAY I received an email from Alice in their customer service department 1) to confirm my warranty, 2) to tell me about the free foam seat cover they were sending me, and 3) to make sure the chair was comfortable and easy to assemble. Very few companies take the effort to follow up with customers right after making a purchase like that. I'm extremely happy with this purchase. This chair is worth MORE than it's weight in gold, and I strongly recommend to anyone thinking about buying an office chair to buy it from MOLENTS - you won't regret it. Oh, and if Alice's supervisors are reading this: she absolutely deserves a promotion!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026

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