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MiraBox HSV321 4K Capture Card vs StarTech.com StarTech USB3HDCAP: Comparison
MiraBox HSV321 4K Capture Card vs StarTech.com StarTech USB3HDCAP: the latency difference
Latency is where these two genuinely part company, MiraBox HSV321 4K Capture Card 65 ms against StarTech.com StarTech USB3HDCAP 60 ms, a 8% lead for StarTech.com StarTech USB3HDCAP. They differ on connection type too, USB-C / Thunderbolt on the MiraBox HSV321 4K Capture Card versus USB 3.0 / 3.2 Gen 1 on the StarTech.com StarTech USB3HDCAP. They differ on passthrough resolution too, 4K60 on the MiraBox HSV321 4K Capture Card versus 1080p60 on the StarTech.com StarTech USB3HDCAP.
Who each one is for
The MiraBox HSV321 4K Capture Card suits budget streamers wanting 4K passthrough without an established-brand price and casual console capture where 1080p60 recording covers the need, though it is not the pick for buyers prioritizing established brand support and consistent firmware updates and HDR capture or passthrough, not supported on this card. The same goes for buyers who'd rather run OBS directly than a bundled proprietary app. The StarTech.com StarTech USB3HDCAP is the one to take for lecture capture, conference room recording, or signage monitoring setups and anyone wanting a capture device with zero required companion software, though it is not built for gamers wanting 4K capture or HDR support, not offered here and streamers wanting bundled overlay or streaming software, none is included. It also earns its place with IT departments and AV integrators needing plain UVC capture across many machines. Our rating of the MiraBox HSV321 4K Capture Card (5/10): genuinely competitive spec for the price, with the build and software consistency trade-offs typical of budget capture brands. Our rating of the StarTech.com StarTech USB3HDCAP (6/10): A reliable, unbranded UVC capture device that does exactly one plain job well for IT and AV integration use cases.
What MiraBox HSV321 4K Capture Card and StarTech.com StarTech USB3HDCAP have in common
Everything else lines up. Form factor, max recording resolution and hdr support read the same on both, so those are not worth weighing.
Specs and benchmarks
Form Factor
- MiraBox HSV321 4K Capture Card
- External USB
- StarTech.com StarTech USB3HDCAP
- External USB
Brand
- MiraBox HSV321 4K Capture Card
- MiraBox
- StarTech.com StarTech USB3HDCAP
- StarTech
Model Number
- MiraBox HSV321 4K Capture Card
- HSV321
- StarTech.com StarTech USB3HDCAP
- USB3HDCAP
Connection Type
- MiraBox HSV321 4K Capture Card
- USB-C / Thunderbolt
- StarTech.com StarTech USB3HDCAP
- USB 3.0 / 3.2 Gen 1
Max Recording Resolution
- MiraBox HSV321 4K Capture Card
- 1080p60
- StarTech.com StarTech USB3HDCAP
- 1080p60
Passthrough Resolution
- MiraBox HSV321 4K Capture Card
- 4K60
- StarTech.com StarTech USB3HDCAP
- 1080p60
HDR Support
- MiraBox HSV321 4K Capture Card
- No
- StarTech.com StarTech USB3HDCAP
- No
Latency
- MiraBox HSV321 4K Capture Card
- 65 ms-8%
- StarTech.com StarTech USB3HDCAP
- 60 msBest
Which one should you pick?
Choose MiraBox HSV321 4K Capture Card if you already have it on hand or find it at a lower price.
Choose StarTech.com StarTech USB3HDCAP if you want the lower latency (60 ms vs 65 ms).
Price comparison
| Retailer | MiraBox HSV321 4K Capture Card | StarTech.com StarTech USB3HDCAP |
|---|---|---|
| Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
MiraBox HSV321 4K Capture Card
5 / 10 Expert Rating
Genuinely competitive spec for the price, with the build and software consistency trade-offs typical of budget capture brands.
StarTech.com StarTech USB3HDCAP
6 / 10 Expert Rating
A reliable, unbranded UVC capture device that does exactly one plain job well for IT and AV integration use cases.