Some helpful information when buying a ps3 (and how to identify one without knowing the serial model number) : r/PS3
PlayStation 3 technical specifications - Wikipedia
PLAYSTATION 3 CECH-2004A DOWNGRADE AND JAILBREAK USING E3 FLASHER - YouTube
New Blu-ray Dvd Drive Kit For Sony Ps3 Slim Cech-2001a 120gb Kes-450a Kem-450aaa - Ac/dc Adapters - AliExpress
PLAYSTATION 3 CECH 2004A GRY MOVE | Konsole | Loombard.pl
JRSHOME RNAB08YR363D5 jrshome replacement blu-ray dvd drive fits for ps3 slim 120gb cech-2001a kem-450aaa kes-450a
How to Jailbreak a PS3 (with Pictures) - wikiHow
PLAYSTATION 3 CECH-2004A DOWNGRADE AND JAILBREAK USING E3 FLASHER - YouTube
PLAYSTATION 3 CECH 2004A GRY MOVE | Konsole | Loombard.pl
How To JAILBREAK Any PS3 Model In 10 Mins! 4.86 (Ps3 slim,Super Slim,FAT) in 2020 - YouTube
How to Jailbreak Your PS3 on Firmware 4.90 or Lower with Flash Writer (Self-Hosted) - YouTube
CECH-2001A PS3 slim custom firmware installation with Teensy - William Quade
Amazon.com: Blu-ray DVD Drive Compatible For Sony PlayStation PS3 Slim CECH-2001A, CECH-2001B, CECH-2101A, CECH-2101B Models (KES-450A/ KEM-450AAA : Electronics
Downgradable PS3 Models & Base Firmware with MinVerChk | PSXHAX - PSXHACKS
PlayStation 3 CECH-2000 PS3 Operation check OK | eBay