This model seems unique to Amazon (I might be wrong). It's a very fast, silent, compact workhorse.I could hear a slight whirring sound coming from the box (not very loud) - it was the 1TB HDD (Seagate Barracuda).I couldn't understand why it was taking 30 seconds to boot-up. Turns out that the 1 TB HDD is the boot drive (C:) not the SSD. I always thought that the idea is to boot on a SSD and use the HDD for storage/backup. So, with respect, I'd say that Dell got it backwards here.Anyway, I replaced the 1TB HDD with a spare 250 GB SSD that I had and it did two things:1. Absolute running silence - no HDD noise.2. Boots up now in 10 seconds!It came with 12GB Ram which seemed like a weird number to me - normally it's either 8GB or 16GB.It's really easy to upgrade, so I added some spare DDR4 memory that I already had to make it 16GB total.Fantastic little box!HIGHLY RECOMMENDED! AAA+++