![Source 4 Port USB HUB with SD Card Reader Adapter for Playstation 3 PS3 Slim Charge on m.alibaba.com Source 4 Port USB HUB with SD Card Reader Adapter for Playstation 3 PS3 Slim Charge on m.alibaba.com](http://g01.s.alicdn.com/kf/HT193BpFQFdXXagOFbXv/200954524/HT193BpFQFdXXagOFbXv.jpg)
Source 4 Port USB HUB with SD Card Reader Adapter for Playstation 3 PS3 Slim Charge on m.alibaba.com
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![P&Y, 4 Ports USB Hub 2.0 With SD Card Reader Slot Adapter For Playstation 3 Slim PS3 Slim - AliExpress P&Y, 4 Ports USB Hub 2.0 With SD Card Reader Slot Adapter For Playstation 3 Slim PS3 Slim - AliExpress](https://ae01.alicdn.com/kf/HTB1CMzmJFXXXXbPXFXXq6xXFXXXS.jpg_640x640Q90.jpg_.webp)
P&Y, 4 Ports USB Hub 2.0 With SD Card Reader Slot Adapter For Playstation 3 Slim PS3 Slim - AliExpress
![Mklife. 4-Port USB Hub with SD Memory Card Reader for PS3 Slim (Black): Amazon.co.uk: PC & Video Games Mklife. 4-Port USB Hub with SD Memory Card Reader for PS3 Slim (Black): Amazon.co.uk: PC & Video Games](https://m.media-amazon.com/images/I/41Acg3UoLgL.jpg)
Mklife. 4-Port USB Hub with SD Memory Card Reader for PS3 Slim (Black): Amazon.co.uk: PC & Video Games
![What were these memory slots used for? Obviously memory stick duo was for psp, but what about the SD and CF ones? I didn't even know what CF was until now : What were these memory slots used for? Obviously memory stick duo was for psp, but what about the SD and CF ones? I didn't even know what CF was until now :](https://preview.redd.it/what-were-these-memory-slots-used-for-obviously-memory-v0-davm81rvadva1.jpg?width=640&crop=smart&auto=webp&s=590f2e7461b653e3c6597f4fe2639a064155cd26)
What were these memory slots used for? Obviously memory stick duo was for psp, but what about the SD and CF ones? I didn't even know what CF was until now :
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スチームデッキ/ウィンドウ用ゲームtfカード,最新のバッテリー,プラグとプレイシステム,51400以上のレトロゲーム,ps3/ps2/ps1/psp/mame _ - AliExpress Mobile
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![Amazon.co.jp: LUONOCAN USB 3.0 Hub, Bus Power, Small and Slim USB Adapter, USB 3.0/2.0 Ports, TF/SD Card Reader, Multi-Hub, PS3/4/5, Compatible with Pascons, etc. Black (5-in-1) : Computers Amazon.co.jp: LUONOCAN USB 3.0 Hub, Bus Power, Small and Slim USB Adapter, USB 3.0/2.0 Ports, TF/SD Card Reader, Multi-Hub, PS3/4/5, Compatible with Pascons, etc. Black (5-in-1) : Computers](https://m.media-amazon.com/images/I/61nCdl0z11L._AC_UF894,1000_QL80_.jpg)
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![Has anybody ever actually used the card readers on the PS3? I've owned this thing since 2008 and never once have I ever used them. : r/PS3 Has anybody ever actually used the card readers on the PS3? I've owned this thing since 2008 and never once have I ever used them. : r/PS3](https://i.redd.it/0l8hjzprbo691.jpg)