The SanDisk Extreme PRO microSDXC UHS-I memory card with 1000GB capacity and U3 rating is designed to capture 4K UHD video without interruption, thanks to its write speeds of up to 140MB/s and Video Speed Class 30 (V30) rating. However, when it comes to recording 8K video, the technical specifications of this card may not be sufficient to guarantee smooth and trouble-free recording.

Recording 8K video requires higher write speeds than those offered by this card, which is optimised for 4K video. Furthermore, UHS-I technology, although efficient for many devices, may not be the best choice for applications requiring extreme speeds such as 8K recording.

In summary, although the SanDisk Extreme PRO microSDXC UHS-I is a high-quality card for 4K video, it may not be the ideal choice for 8K video recording.