Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Frame size | Width | Height | Mpix | Aspect Ratio | Maximum fps | Maximum fps HDRx | least compression at 24 fps | least compression at maximum fps |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 5K | 5120.0 | 2700.0 | 13.8 | 1.9:1 | 12.0 | 6.0 | NA, 24 fps is not possible at 5K | 5:1 |
| 4K | 4096.0 | 2160.0 | 8.8 | 1.9:1 | 25.0 | 12.0 | 6:1 | 6:1 |
| 4K HD | 3840.0 | 2160.0 | 8.2 | 1.78:1 | 30.0 | 15.0 | 6:1 | 7:1 |
| 3K | 3072.0 | 1620.0 | 5.0 | 1.9:1 | 48.0 | 25.0 | 4:1 | 7:1 |
| 2K | 2048.0 | 1080.0 | 2.2 | 1.9:1 | 60.0 | 30.0 | 3:1 | 4:1 |
Question:
What size is a 30 frames per minute
Answer:
4K HD