Summary: I bought 3 of these to build and all were used as stand alone PC's. Arrived quickly and are lightning fast after built. Best 300.00 I ever spent on a system like this. The price seems to fluctuate daily and jumps as much as 40-50 dollars. If they get back down around 300.00 I would probably buy another. You can't go wrong with this piece!
Pros: Good entry level server to set up Windows Server 2012 Hyper-V for learning and experimenting. Very quiet and efficient. Just add SSD and enough RAM and I got a Windows 8, Sharepoint, Linux...set up to play with.
Cons: Server memory is expensive and it was hard to find good matching used ones. I ended up buying Crucial from NewEgg (1.35V, 16GB kit, UDIMM ECC) which worked very well.
Summary: It arrived well protected in a sturdy box. Connect up the cables and pop in a DVD and I had Linux Mint 15 running in less than 15 minutes. No BIOS fiddling required. The TS140 seems very quiet (vast improvement over my noisy M58e). I really don't hear the fan(s), just some clicking from the media.
Summary: One of the cheapest entry server/workstation I have owned. Previous experience with many Dells, a few HPs, and one Fujitsu. Bought three TS140s so far. One i3-4130, one e3-1225v3, and one e3-1275v3. Two of three have standard 280W PS and one 450W. One has GT640, one GTX750Ti, and one GTX 650Ti video. Have SSD in each as OS drive and notebook HDDs in two of three for data. One machine configured with three SSDs (On-board RAID 5 Data).
Pros: - Cheap Entry Level Server/Workstation
Cons: - Limited drive bay options without getting creative
Summary: Combined this with WD RE4 drives and loaded Windows Home Server for a small business. Very good performance and quality built in. I have bought 3 of these with no problems. You can't find a small business or home server at this price that performs well. No problem in a multi-user environment with 10 users sharing files. Comes with Lenovo disk for installing Server 2012. To install Home Server, I had to manually install drivers. No problem - easy setup.
Summary: As an experienced system builder I must admit, this system provides unrivaled performance for the money. I was very hesitant to order this unit, however, I just could not begin to match the features at the price point this provided, so I gave it a shot. (I dare you to try, I scoured newegg and amazon for hours and could not come within $100 of the price) Do not be fooled by the low price, this is a full on server grade bare-bones system.
Summary: I still cannot really believe the fantastic deal I got on this computer. I added the WD 1 TB hard drive and Microsoft Windows 8.1 Pro 64-bit and it is really great. Contrary to so many reviews I have read, the Windows 8.1 Pro is super. All the things I want to do it handles with no effort. The ThinkServer TS140 is so much better than other advertisements I have received I just have to pinch myself.
Summary: I was looking for a computer and install a Linux operating system. Because no harddrive, I don't need to pay for a pre-installed Windows operating system. Adding a hard drive and wireless card to the computer is easy. I have used it for a few months. It has been woking wonderfully for me. The cost/performance ratio is great.