What are these ports for? I always wondered but never actually could find out : r/PS3
Memory Card Adaptor Hands-on - IGN
Other Accessories - PlayStation 3 Memory Card Adapter (PS3)(Pwned) - Sony (SIE / SCE) 100G was listed for R1,490.00 on 14 Oct at 23:47 by Pwned Games in Cape Town (ID:531891285)
SONY Playstation PS3 Memory Card Adaptor PS1 PS2 Data Transfer JPN #1544 | eBay
Amazon.com: Playstation 3 Memory Card Adapter - Use PS2 Memory Cards on Sony PS3 : Electronics