Genuine Toshiba Radius 19v 2.37a charger 2.5pin specification:
Power output: 19v 2.37a
Ac adapter Power: 45w
Power input: 100-240v
Tip pin size: 5.5mm * 2.5mm
p/n: PA3822U-1ACA and many more
Toshiba Ac adapter warranty: 12months
Contents: The Toshiba T1 chargers is EOL, you will now be sent an ac adapter manufactured by the same company that Toshiba used, which is Delta and are the exact same specifications and 100% compatible.

Genuine Toshiba Radius 19v 2.37a charger & plug

• Key points of this Toshiba Satellite Radius charger
• Next day delivery on orders before 3pm
• Free power cable mains adapter plug
• 12 months warranty as standard
• Genuine Toshiba 45w laptop charger

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So far the Toshiba Radius has 2 versions of ac adapter, both power at 45w and run at 19v 2.37a and the only difference is the connector tip on your Radius charger, this version connector has a diameter of 2.5mm as is Toshibas standard and by far most size connector, the other has only a 1.7mm diameter and can be found below
Toshiba Radius 19v 2.37a charger 1.7pin