Found this in one of the PS2 systems I purchased. What is it

PS2 SUPER LOT 2 PS2 Systems 4 Controllers 5 Memory Cards

Managed to find myself a sealed 70003 with an unused vertical stand😁 Any tips to prevent disc scratching issues long term? : r/ps2

Bought an untested w/ box slim from Goodwill auctions. Works great, how does the ps2 community feel about buying from Goodwill? : r/ps2

Found this in one of the PS2 systems I purchased. What is it? Looks like it is missing a disc. Is the dongle worth keeping? : r/ps2

PlayStation 2 - Wikipedia

Replacement Playstation 2 Slim Console Only - Black - No Cables Or Accessories (Renewed) : Video Games

Playstation 2 Slim System Console on Sale

Sony PlayStation 2 Slim Console - Black

Restored Sony PlayStation 2 Console Slim PS2 (Refurbished)

Parents cleaned out the garage and found all my old PS2 stuff. Any good games y'all remember? : r/ps2

Restored Sony PlayStation 2 Console Slim PS2 (Refurbished)

PlayStation Consoles Have Sold Over 500 Million Units