Summary: SanDisk Memory Vault is available in two capacities – the 8GB variant costs Rs. 3,499 and the 16GB variant costs Rs. 5,499. You’ll find it way too expensive, if you compare these prices to those of portable hard drives. But Memory Vault commands a premium for its ability to preserve data for a 100 years. So, go in for this drive if this parameter is critical for you, or take the trouble and be safe than sorry by taking multiple backups.