The Apple MacBook Pro 15" (A1990, 2018-2019) uses the A1953 charger, which is an 87W USB-C power adapter.

• 2018-2019 MacBook Pro 15" (A1990): Both of these models use an 87W USB-C power adapter for charging. The charger provides sufficient power for the laptop, allowing for fast charging and proper power delivery.

If you need to replace the charger, you should ensure the replacement is an 87W USB-C charger that supports USB-C Power Delivery (PD). The A1953 is the official charger, but there are also third-party alternatives available that meet these standards. However, for optimal performance and safety, Apple’s original charger or a reputable third-party charger is recommended.