Pros: For a Server 2012 R2 Essentials build. Only needed to add a few extra parts to get it up to par (see other). ).
Cons: If you do not know what your doing, I would stay away from this device, there is no support for this item from Lenovo/IBM unless you have a contract with them. I had a hard time just trying to get part numbers but luckily I finally googled the correct term.
I had to play around on their website to get the correct drivers. I had a lot of trial and error. Once I get the right drivers, I documented it for future use.
Overall Review: It is a shame it doesn't come with caddy's for all of the bays. I would rather see a system without hard drive but with Caddy's vs offering a single hard drive solution. Regardless, here are some part numbers that might help you out...
RAM - 8gb is good however I really want to play it safe or if you plan on running a hypervisor, you will need a bit more. So I purchased another 8gb stick googling IBM part number 00D5015 or 00D5016. Expect to pay around $55 per stick. [So far the system boots just fine]
Caddy - Google search Lenovo 69Y5342. This will lead you down a rabbit hole of solutions. I ended up paying $17/caddy
Raid Upgrade - the Built in raid controller only supports Raid 1 and Raid 0. To get Raid 5 you need to google search Lenovo 81Y4406. Please note that this "part" is only a license key. Your not changing out any physical hardware
Then you need to google Lenovo FoD. You should find a PDF regarding Features on Demand. From there you can install the new key.
All said and done, minus the cost of the physical hard drives i needed to purchase (2 x 2.5" SSD & 4 x 3.5" HDD), I spent around $600 to get the system a Bare Quad Core 16gb Ram server with Raid 5 support.
Pros: I bought this for a VMWare lab, but it's good for any sort of light server duty. 2 NICs with reasonably stable drivers and 4 bays for SATA drives. Quiet for what it is, except when the fans kick on full-blast at boot.
Cons: It only takes low-voltage ECC unbuffered DIMMs, so if you have some desktop memory lying around you were hoping to use, forget it. Keep in mind that it's a server; don't complain when you get nickel and dimed for things like drive carriers that would be included with a home PC. Fan noise will be mistaken for a quadcopter at boot-up, although it settles down to barely noticeable under normal load.
Overall Review: Keep in mind that it's a server, and make sure you do your research and read the manufacturer docs before buying to make sure it's exactly what you want.
Pros: Excellent performance and stabilization. Affordable personal home server. I set up my web server and database server on it.
Cons: 1. Only came with a power cord, No keyboard, no mouse, no simple swap tray, even no VGA cord. Had to order other parts from different places. Very inconvenient.
Overall Review: If Newegg have bundled some nessary parts , I might give a five star to this system.
Cons: Bought to run with 2 mirrored drives, it comes with one drive and no way to install additional drive. Needs a simple swap caddy tray which is not included. Contacted Lenovo, they transfered me to IBM, which in turn transfered me back to Lenovo.!! All just to purchase a simple tray to add hard drive. Needless to say it is very disappointing that Lenovo ships a chasis without trays to install the additional drives.! Any box of lesser price comes with slot/bays to install drives not this one.