The Dell Vostro 3420 Laptop Supports Single Drive Configuration Only. (One M.2 NGFF (2280) or (2230) Solid State Drive) Note: Models with a 12th Generation Intel Processor support NVMe Generation 4.0 x4 speeds. Models with a 11th Generation Intel Processor support NVMe Generation 3.0 x4 speeds. The M.2 (2280) and (2230) Drives each use a unique thermal Plate and cannot be interchanged. The M.2 (2230) Drive uses thermal plate p/n 37Y7P and the M.2 (2280) Drive uses thermal plate p/n 0FP8R3.