The USB C to 4.5*3.0mm black tip adapter cable for dell compatible for 90w 65w 45w power supply, it must be used together with PD device, have portable durable compact lightweight etc. feature. Please Note your PD power supply output support 3a at least. ?Work with your PD USB-C devices with PD 20v 2.25a for Dell 19.5v 2.31a 45w ?Work with your PD USB-C devices with PD 20v 3.25a for Dell 19.5v 3.33a 65w ?Work with your PD USB-C devices with PD 20v 4.25a or above for Dell 19.5v 4.62a 90w Note: Please check your old adapter specifications, will not work for 130w or more power, and the tip is not 7.4mm × 5.0mm ?The old big tip with pin? Specification: Input: USB C to tip PD Devices with at least PD 20V 2.25A Output for 45w, PD 20V 3.25A Output for 65w, PD 20V 4.5A output for 90W. Such as PD Chargers, PD Auto Car Chargers, PD function power banks, MAKE SURE ENOUGH POWER PLEASE. Output: Female tip 4.5mm × 3.5mm / 0.18*0.14in Cable Length: 150cm / 59.06in Compatibility: ??for Dell Inspiron 11 , 12 13Z 14 14R 15 15R 17 17R series : ??for Dell Inspiron 11 3000 3147 3148 3152 3153 ??for Dell Inspiron 13 5000 7000 7347 7353 5368 5378 5379 7378 ??for Dell Inspiron 14 3000 5000 3451 3452 3458 3459 3462 3467 5451 5452 5455 5458 5459 ??for Dell Inspiron 15 3000 7000 7558 3551 3559 I7537T I7547 I7548 M531R M731R Warm-Tip: USB C type charger cable suitable for PD devices 45w, 65w, 90w power supply for Dell, please confirm whether the PD Devices output power will be enough before purchasing. for e.g., the original power supply of your laptop is 19V 3.34A 65w , then you need to use a 65W or more power PD power supply for this cable