I put 32GB SanDisk Fit with AutoBleem and a 2 port USB hub inside the controller. Works great. : r/PlaystationClassic
Here is how my USB hub mod turned out. : r/PlaystationClassic
Amazon.com: AuviPal 3-Port Micro USB OTG Hub Adapter (3 USB Ports + Power Port) for Fire Stick 4K, Playstation Classic, Raspberry Pi Zero, Sega Genesis Mini, S/NES Classic Mini and More -
Using the AUKEY 4-Port USB 3.0 Hub With the PlayStation Classic | Review – The Gamer With Kids
ELECOM for ~PLAYSTATION 3 USB HUB 7 PORT~ freeshipping!!! | eBay
True Blue Mini - Fight Pack ( 32 GB ) USB HUB for PS Classic PS1 | Wish
Sony PlayStation Classic Console with 100 Games With PS1 USB HUB
🛠️ HOW TO: PLAY 2 PLAYERS WITH USB HUB ON PS CLASSIC : r/PlaystationClassic
Convert my SD2VITA PS1 games back to PS Classic format? | Page 2 | GBAtemp.net - The Independent Video Game Community
Playstation Classic OTG USB Hack - Simple How To Guide! - YouTube
1TB HDD working on PSClassic. (Details in comments) : r/PlaystationClassic