Yes, these do exist. I bought one this big to use as a Time Machine back up for my Macbook Pro. It’s good enough to back up system files along with important data I need. Very convenient to keep in your wallet. Bought it from Amazon for about KD 45 (now KD 35) while it’s being sold at X-Cite for KD 120. A 256GB SD card by lexar is well on its way.