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By PURPLELEC | 02 March 2024 | 0 Comments

What are the differences between PCI-E video capture card and USB video capture box?

  Video capture cards are divided into built-in cards and external cards, which are PCIE and USB respectively. PCIE can be plugged directly into the computer's motherboard, similar to how a graphics card is plugged in. USB is connected to the computer USB interface through a USB cable. So what are the specific differences between these two video capture cards, and how to choose?
Video capture cards
  1. Is it more appropriate to use a desktop or a laptop?
  Desktop computers can choose either PCIE or USB capture cards. For laptops, you can only choose a capture card with a USB interface.
  2. Flexibility and convenience.
  If the usage environment is relatively fixed, it is better to choose a PCIE built-in card. And more stable. If the usage environment is not fixed and changes frequently, then choose a USB built-in card. The USB box is highly mobile. I believe you will definitely take your laptop with you when traveling or on business, rather than carrying a desktop computer.
  3. Reasons for computer configuration
  If your computer configuration is not high and it is a desktop computer, it is recommended to use a PCIE live broadcast card. The PCIE live broadcast card does not have very high requirements on the computer, and the latency is lower than the USB2.0 live broadcast box. Generally There is basically no noticeable delay in game live streaming.
Video capture cards
  If your computer configuration is relatively high, it is recommended to use Purplelec USB3.0 live broadcast box. The capture quality is up to 1080P60 and there is almost no delay. This is what live broadcasters value. Video Encoder HD Encoder. For multi-channel high-definition, it is best to use a PCIE capture card. For example, Purplelec PEC-VS2583 and PEC-4HDMI are dual-channel HDMI ultra-high-definition capture cards and four-channel HDMI ultra-high-definition capture cards respectively. The hardware requirements are relatively high, so it is recommended to use a desktop computer for collection. Ultra-clear 4K capture card recording is also best done on a desktop computer. HD 1080P can be captured using a laptop. To capture dual-channel 1080P resolution video, if the laptop has good performance, it can also support it.

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