4GB (2GBx2) Team High Performance Memory RAM Upgrade For Toshiba Portege M400-S933 M400-ST4001 M 400-ST4035 M400-ST9113 Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
2GB DDR2 RAM Memory Upgrade for Toshiba Portege M400 M500 M700 M750 M800 M805 M900 Series Laptop (PARTS-QUICK) - Walmart.com
4GB (2GBx2) Team High Performance Memory RAM Upgrade For Toshiba Portege M400-S933 M400-ST4001 M 400-ST4035 M400-ST9113 Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
Toshiba Portege M400 review
TOSHIBA M400 Tablet, New windows 10/Office 2010 suite - computers -...
How to upgrade RAM in Toshiba Portege M400 – Inside my laptop