Summary: I bought this in order to migrate from the soon to be unsupported XP to Win7. The machine I received has Dell service tag# 3HTR9Y1. If you want to know exactly what you'll be getting, plug that in on the Dell support site. Includes keyboard, mouse, DVI/VGA adapter plug, DisplayPort/DVI dongle, Win7 re-install CD and Utilities/Drivers CD (both already installed).
Pros: Small & fast. Comes with Win7 Pro (NOT Win8.1). Good upgrade potential. Got it within a week of ordering. Bought it on sale, so saved some $$$.
Cons: I have to agree with Doug, it would have been nice to know exactly what came with the machine. I expected the box only, but that turned out not to be the case. Which was a nice surprise. Comes with a 275W power supply, which will probably require an upgrade sooner rather than later. My experience with Dell power supplies has not been good.
Summary: This machine was a good fit, as we needed a fast system to run 32-bit W7. 32-bit drivers were easy to download from Dell. With only 4G of RAM not much gets wasted.
Pros: Fast. Good driver support. OEM Windows 7 with sticker, not W8 downgrade. Future upgrades should be easy, it accepts a lot of memory and discrete video card. All necessary video adapters included.
Cons: Only one HDD caddy included. Included SATA cables will not work with a 3.5" HDD, they stick out so far that they interfere with the chassis cover. You would need to get one with a 90 degree bend at the end.
Summary: Bounced between this one and an Optiplex 3020. I ultimately decided on the 7010 since this particular one was on sale, had 2 USB 3.0 ports on the front an Ivy Bridge I7 and a dedicated video card.
Pros: A Display port to DVI adapter came in the box as well as an DVI to VGA adapter. The two I bought are licensed for Windows 7 pro and came with OEM Windows 7 pro media. Computer has 4 dimms inside and can support 32 gb of ram (The manual listed 32gb) should I ever need it. Saved money with buying the computers from Newegg. An available 5 1/4 bay to add an additional Optical drive or a media card reader.
Cons: It would have been nice if there was a description of what came inside the box. I bought two Display-port to DVI adapters along with the two computers and it turns out I didn't need them. I can find use for the adapters elsewhere so I have no plans on returning the adapters.