If you bought new from Dell, then the AC adapter is new. popcan shipped with 1MDV8. m18 R1 =8K4F9 AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm, ChiconyHJCCJ AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm, Chicony5P90C AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm, DeltaGMT0M AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm, Delta1MDV8 AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm, LiteonC6PGW AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm, Liteon [IMAGE] I also found the Slim AC adapter KN7XW = Slim AC Adapter, 330W, 19.5V, 3 Pin, 7.4mm This product is compatible with the following systems:Area-51m R2m16 R1 AMDm16 R1 Intelm17 R3m17 R4m18 R1 AMDm18 R1 Intelx17 R1
Just seeing what other people are getting. All of the reviews I have either read or watched are getting the Alienware branded slim 330W AC adapters. I got mine and it has the old big 330W adapter.  Anyone else getting this? These computers are not cheap.
m18 R1, Dell not sending new 330W power adapters?