For your reference, here are the introductions about the storage and RAM of the POCO X6 Pro:
1. The RAM is 8GB/12GB, and the RAM type is LPDDR5X. LPDDR5X is a type of low-power double data rate (LPDDR) memory technology. It builds upon LPDDR5 with improvements aimed at higher data transfer speeds and lower power consumption;
2. ROM options include 256GB or 512GB, utilizing UFS 4.0 technology, which provides reliable storage performance suitable for most smartphone applications;
3. It does not support expanded storage. However, it supports memory expansion 3.0.
Note:
Available storage and RAM are less than the total memory due to storage of the operating system and software pre-installed on the device.