
There are 2 different PSP Devolutions:
TA-079/TA-081 Model
TA-082/TA-086 Model
These are some sites you can buy this from:
http://www.mod-chip.com/
http://www.foundmy.com/oscom/index.php
http://www.modchipcentral.com/catalog/
http://www.xbox-modchips.com/
http://www.hardstore.com/
http://www.futura-online.com/e-tienda/catalog/index.php
http://mod-center.com/tomachip/
http://www.mrmodchips.co.uk/catalog/...te_banner_id=1
To get installation instructions, software, and the drivers, go to the official PSP Devolution site: http://www.psp-devolution.com/