Lenovo EMC PX4-400D Diskless 4 Bay 2GB Network Attached Storage

Had the 6 disk and 2 disk versions as well before. Solid and quick performance, more a mini server than just a NAS in terms of functionality. Use decent disks and stable power source then they work without issue for literally years.

I have a couple of PX2-300d NAS's - long story... - and one has be implemented as the original NAS and works brilliantly. It integrates seamlessly into Active Directory and offers all the applications I actually use, without too much blotware.The other one is running Windows Server 2016 and only needed two additional Intel source drivers to get all the USB and screens to run optimally.Given that these are actually mITX Atom based PC motherboard, I was hoping that the PX4-400d with the more modern and faster Atom and 4 disc support would really perform but for some odd reason, Intel never produced 64bit drivers for this processor set so you are stuck with a generic screen driver which does not support higher modes. Not a big issue as it is running server software and arguably a back office device.The original NAS software is held on a 1GB USB disc which can simple not be booted from in the BIOS, leaving a good looking, quiet PC ready for action. They would both make brilliant Linux boxes, all without being destructive to the original purpose.There is a single SFF X11 PCIe slot. I tried an alternative video card in the slot but the PX4 refused to boot so I reckon BIOS support for additional cards is somewhat limited. The board is actually unmarked so I could not determine which manufacturer actually made it, unlike the PX2 which proudly boasts its Twainese manufacturer.There is a header for addition USB port pairs, with I have utilised in a PX2 with no issues.There are a few other headers to explore; one looks like a HD audio block.The PX2 and PX4 has twin network socket, some USB socket - enough in operation but a hub is handy in deployment for CD drives etc.The PX2 has VGA out, the PX4 has HDMI and a serial port (?!?!)Both come with 2GB of RAM which is a single SODIMM occupying only 1 of the 2 slots. The Atom only supports 4GB with is generally a good and cheap upgrade.So in summary?As a NAS, this is an old but still good offering. The unit is an Iomega/IBM/EMC hybrid - all good names - running a no longer supported variant of Linux and runs on an Intel based motherboard. This is all great news for the fiddler who wants a small, quiet box to muck about with. It runs Windows 7 and Windows 10 with no issues.As a NAS it's better than most MIPS based units but not as good as others but just remember these units were targets at businesses and while they easy to set up, one does need to know at least the basics. The fact they come with a perpetual antivirus license is a nice touch.

Love this Nas and for the price what a bargain top notch