Help me to choose my new DAS

I'm a content creator and I always working with thousents of GB and my macbook pro is always full.

I'm looking for a DAS to have all my content/backup (RAID 1). And I don't know the best option between

OWC Express 4M2 -> https://www.amazon.es/OWC-Compatible-Aluminio-Silencioso-Incluido/dp/B0FLQFTZ5S

TERRAMASTER D4 SSD -> https://www.amazon.es/TERRAMASTER-D4-SSD-compatible-Thunderbolt/dp/B0F8BH3P7M