PlayStation 3 Model CECHBxx Screws
Sony PlayStation 3 Screw Set B
Screws for securing the motherboard enclosure to the lower case
Sony PlayStation 3 Screw Set C
Screws for securing the Wireless Board, the Power Supply, and the Memory Card Reader to the Motherboard
Sony PlayStation 3 Screw Set A
Screws for securing the upper shell of the PS3
The CECHBxx model of Playstation 3 was released in November 2006. It featured a 20 GB hard drive and hardware PS2 emulation but no flash card reader or Wi-Fi.