1, portable style: there are British regulations, American regulations, European regulations can be replaced. A good helper for traveling abroad2, the new environmental protection circuit, low standby power consumption, low heat, overvoltage, overcurrent, short circuit protection;3, STM chip process, the board is more firm, the design is more beautiful;4. High safety and efficiency transducer device. High resolution output.5, two-stage anti-interference filter, EMC standard high and low filtering, PCB safety voltage creep distance. The output voltage ripple is small;Compatible with Dell Inspiron Series: 300m 500m 510m 600m 630m 640m 700m 710m 6000 6000D 6400 8500 8600 9300 1150 1318 1420 1501 1521 1525 1721 5150 5160 E1405 E1505,15R N5110, 17R 7110, M5110 Dell Latitude Series: X300 D400 D410 D420 D430 D500 D505 D510 D520 D530 D531 D600 D610 D620 630 D631 D800 D810 D830 D831 131L E4200 E4310 E4300 E5400 E5410 E5500 E6220 E6400 Dell XPS Series: M1210 M1339 M140 M170 M1530 M1710, 14 L401X 15 L501X 15 L502X 17L701X 17 L702X Dell Precision Series: M20 M60 M70 M90 M2400 M2800 M4400 M4700 M4500 M6300 M6700 Dell Vostro Series: 500 1000 1200 1400 1500 2510 3700 3750 A840