Elgato
Elgato 4K X
USB-C · 4K144 (HDR10 capture Windows only) · 4K144
8.6
$250Nov 9
ASUS TUF Gaming Capture Box CU4K30
A budget USB capture box with 4K60 HDR passthrough and VRR that records best at 1080p or 1440p.
- USB-C
- 2160p30 uncompressed, 1440p60, 1080p120
- 4K60 HDR, 1440p144 HDR, 1080p240 HDR
- HDR capture
PCPR score
7.8
Good
Best price we’ve seen
$120MSRP
List price from the maker. Street prices may be higher.
R1
The short version
The TUF Gaming Capture Box-CU4K30 is ASUS's external capture box with HDMI 2.0 input and passthrough up to 4K60 HDR, 1440p144 or 1080p240, VRR support, and uncompressed recording up to 2160p30, 1440p60 or 1080p120 over USB 3.2 Gen 1. Windows Central rates it a strong low-cost choice for 1080p and 1440p streaming, but finds 4K capture limited by its 30 fps ceiling. It suits budget streamers who mostly capture at 1080p or 1440p and want cross-platform, OBS-certified hardware.
Pros
- 4K60 HDR passthrough with VRR
- Uncompressed capture up to 1440p60 and 1080p120
- Cross-platform and OBS-certified, per Windows Central
- Compact box with RGB lighting
Cons
- 4K capture limited to 30 fps, per ASUS and Windows Central
- HDMI 2.0 only, so no 4K120 passthrough
Best for
- Budget streamers capturing at 1080p or 1440p
- Console streamers on a tight budget
J3
Full specifications
Connectivity
- Interface
- USB-C
Performance
- Max capture
- 2160p30 uncompressed, 1440p60, 1080p120
- Max passthrough
- 4K60 HDR, 1440p144 HDR, 1080p240 HDR
Features
- HDR capture
- Yes
- VRR passthrough
- Yes
Ports & I/O
- HDMI input
- 2.0
Compatibility notes
- Connects by USB 3.2 Gen 1 Type-C; full modes need USB 3.2, as USB 2.0 is limited to 720p30.
- HDMI 2.0 input and passthrough with VRR between 48 Hz and 120 Hz depending on resolution.
P1
Where to buy
- Buy from the maker
ASUS official page
Direct link
- Check price on Amazon
Amazon
Search this retailer
- See it at Newegg
Newegg
Search this retailer
- See it at Best Buy
Best Buy
Search this retailer
- See it at B&H
B&H Photo
Search this retailer
- See it at Micro Center
Micro Center
Search this retailer
We may earn a commission when you buy through links on this page. It never affects our scores or what we recommend. Prices move quickly, so confirm the final price at the retailer.
AV1
Video reviews
No verified video reviews yet
We only list videos we’ve confirmed are about this product. You can search YouTube for reviews in the meantime.
AV2
What reviewers and owners say
Windows Central
PositiveRecommends it as an affordable box for 1080p and 1440p streaming that works across platforms and in OBS, but warns that 4K recording stops at 30 fps.
Review
Read the source
Summaries are written in our words. Follow the links for each source’s own review.
R9
Common questions
Can the CU4K30 record 4K at 60 fps?
No. ASUS lists uncompressed recording up to 2160p30 over USB 3.2 Gen 1, so 4K60 is passthrough only.
Does it support VRR passthrough?
Yes. ASUS lists VRR passthrough between 48 Hz and 120 Hz, depending on the bypass monitor's resolution.
What USB port does it need?
A USB 3.2 Gen 1 Type-C connection is needed for full capture modes; USB 2.0 drops to 720p30.
J9Alternatives
Similar capture cards
Elgato
Elgato 4K S
USB-C · 2160p60 (HDR10 up to 1080p60, Windows only) · 2160p60, 1440p120, 1080p240
8.4
$147Nov 9
Elgato
Elgato Cam Link 4K
USB 3.2 · 4K30 (4K60 MJPG) · None (no HDMI output)
7.9
$85.99Nov 9
AVerMedia
AVerMedia Live Gamer ULTRA 2.1
USB-C · 2160p144 (Windows), 2160p60 (macOS) · 2160p144 HDR/VRR
7.8
$300MSRP