Dell Inspiron 15R SE (7520, Mid 2010) - Manual (Page 7)

Power adapter
Inspiron
14R-5420/7420/
M421R-5425 Inspiron
15R-5520/7520/
M521R-5525
Output current
(continuous) 3.34 A (Inspiron
14R-5420/7420)
4.62 A (Inspiron
14R-5420/7420, Inspiron
M421R-5425) 3.34 A/4.62 A
Output power 65 W (Inspiron
14R-5420/7420)
90 W (Inspiron
14R-5420/7420, Inspiron
M421R-5425) 65 W/90 W
Rated output voltage 19.50 +/– 1 VDC 19.50 +/–1 VDC
Temperature range
Operating 0 °C to 40 °C
(32 °F to 104 °F) 0 °C to 40 °C
(32 °F to 104 °F)
Storage –40 °C to 70 °C
(–40 °F to 158 °F) –40 °C to 70 °C
(–40 °F to 158 °F)
Media-card reader
Cards supported • Secure Digital (SD) memory card
• Secure Digital High Capacity (SDHC)
• Secure Digital Extended Capacity (SDXC) with ultra
high-speed
• Memory Stick
• Memory Stick PRO (MS-PRO)
• Memory Stick Extended Capacity (MSXC)
• MultiMedia Card (MMC)
• MultiMedia Card plus (MMC+)