Is it possible to capture 4K Video @30 FPS with M.2 Key E connector? How can I connect the PCIe card shown in the link below to Nano board to grab 4K video? Currently, 4K video capture using Jetson Nano USB 3.0 is laggy.
Link: Eco Capture HDMI 4K M.2 - Magewell
Hi Dronzer,
Unfortunately that capture card requires a PCIe X4 or M.2 Key M. The M.2 Key E is only PCIe X2, you may try searching for any M.2 Key E capture cards, or you can try using a M.2 KeyE to mPCI adapter like this one if you can find a 4K mPCI capture card.
here’s a table of the M.2 Keys specs for reference:
Key
ID Notched
pins Provided interfaces
A 8–15 PCIe ×2, USB 2.0, I2C and DP ×4
B 12–19 PCIe ×2, SATA, USB 2.0 and 3.0, audio, UIM, HSIC, SSIC, I2C and SMBus
C 16–23 Reserved for future use
D 20–27
E 24–31 PCIe ×2, USB 2.0, I2C, SDIO, UART and PCM
F 28–35 Future Memory Interface (FMI)
G 39–46 Reserved for custom use (unused in the M.2 specification)
H 43–50 Reserved for future use
J 47–54
K 51–58
L 55–62
M 59–66 PCIe ×4, SATA and SMBUS
Hello Ubernoid,
Thank you for the detailed explanation. Could you confirm if the extender in the following link can be used to connect Nano to the Capture card?
Link: NGFF M.2 Extender Cable Key A+E 15cm for Wireless Card, WIFI Card, R55SF - Newegg.com
No that one would just extend the M.2 E connector from underneath the Nano module without changing anything, the adapter I posted above extends and converts you to a mPCI interface. A quick search I see there are a few mPCI video capture boards out there mostly HD multichannel, like this CarTFT VCC-320 Mini-PCIe (8x Video/Audio Capture Card) [ Video Input ] or this DarkCrystal HD Capture Mini-PCIe C353│AVerMedia. I have not tested any of these so I have no idea if it would work without issues, but would get you connected together.
AVerMeida has a 4K@30 M.2 capture card.