Enter in the coupon code 50OFF699 to get the savings. Seems to work on a laptop I added to my cart. Not sure it works on all desktops/laptops. Looks like the coupon expires 2/1//2021. Here is the fine print from the coupon:
Save $50 OFF $699
Dell Coupon Offer: Offer valid 2/3/2020 - 2/1/2021 7:00am CST. Coupon is valid with select other offers, but not with other coupons. Coupon is valid on select order codes. One time use only. Offer does not apply to, and is not available with, systems or items purchased through refurbished items or spare parts. Purchase limit of 1 items per order. Not valid for resellers and/or online auctions. Dell reserves the right to cancel orders arising from pricing or other errors. Exclusions include: New XPS 13, all doorbuster order codes, standing offer order codes, and order codes containing AFF.