This is an original Dell adapter.

Tech. parameters: Output voltage: 19.5V Output current: 12.3A Output power 240W End size: 7.4x5.0 mm

the package does not include a power cord

The adapter is suitable for the following laptop model series:

Dell Alienware Alienware Area-51m, Alienware Area-51m R2, Alienware m15, Alienware m15 R2, Alienware m15 R3, Alienware m15 R4, Alienware m15 R5, Alienware m15 R6, Alienware m15 R7, Alienware m17, Alienware m17 R2, Alienware m17 R3, Alienware m17 R4, Alienware m17 R5 AMD, Alienware M17x, Alienware M17x R2, Alienware M17x R3, Alienware M17x R4, Alienware M18x, Alienware M18x R2, Alienware x15 R1, Alienware x16 R1, Alienware x17 R1, Alienware x17 R2, Alienware 15, Alienware 15 R2, Alienware 15 R3, Alienware 15 R4, Alienware 17, Alienware 17 R2, Alienware 17 R3, Alienware 17 R4, Alienware 17 R5, Alienware 18 G series G15 5510, G15 5511, G15 5515, G15 5520, G15 5521, G15 5525, G15 5530, G16 7620, G16 7630, G3 15 3500, G5 SE 5505, G5 15 5500, G7 15 75 00, G7 17 7700 Inspiron 13 series Inspiron 13Z 5323 Latitude 5500 series Latitude 5501 Latitude E series Latitude E5440, Latitude E5540, Latitude E6440, Latitude E6540, Latitude E7240, Latitude E7440, Latitude E7440 Touch Precision Precision M4600, Precision M4700, Precision M4800, Precision M6300, Precision M6400, Precision M6500, Precision M6600, Precision M6700, Precision M6800, Precision 7670, Precision 7710, Precision 7720, Precision 7730, Precision 7740, Precision 7750, Precision 7760, Precision 7770 Vostro Vostro 1011, Vostro 1440, Vostro 2420, Vostro 2520, Vostro 3360, Vostro 3460, Vostro 3560 XPS XPS M1730 (M1730), XPS 14 (L401X), XPS 15 (L502x), XPS 15 (9575)

You can find the operating instructions here: https://shop.sil.com/katalog/soubory/navodkobsluze.pdf