Long threads in the hot deals section of forum, time to move support to the proper forum section IMHO. I have 2 of each IX2 and PX4, and know the most about those specific models, but I am far from being knowledgeable, so thread here is for me to ask for help as well as give it when I can.
forums.anandtech.com
forums.anandtech.com
forums.anandtech.com
Last thread link is from 7+ years ago when the IX2 first went on clearance and I bought one. This is the PRO side, they are quality units, mine up 24/7 with a pair of WD Red drives 7 years. CON side is that all of these NAS are old, End of Life little real support from Lenovo, but some files etc are still around, and besides myself a number of others bought one or more when they were offered cheap starting last year. Links in top thread are still selling units, but given all we now know and don't know these are not hot deals unless you like a lot of adventure in your deals.
Threads exists if you look for them or I get around to linking them here of people installing some version of Linux and making various software and hardware upgrades.
Lenovo PX4-400D NAS no drives dropped to $99 w free shipping
I made a thread to put support issues in, https://forums.anandtech.com/threads/help-for-old-lenovo-emc-nas-units-ix2-px4-etc.2609187/ These are no longer supported by Lenovo, the main software EMC was sold off to Dell, which will not be supporting old Lenovo stuff either. Several threads with...

Lenovo/EMC 2-bay PX2-300D ($99.99), IX2 ($59.99) and 4-bay IX4-300D ($109.99) NAS units @ Newegg (Sold by Centrix Intl.)
Now have a PX2-300D for $99, diskless. It has a screen, and what appears to be hot-swap caddies. Unfamiliar otherwise with this unit, and what firmware features it may have. Anyone care to comment? No reviews yet @ Newegg. Sold by the same seller as the other Lenovo/EMC units, "Centrix...

Lenovo ix2 2-bay Gigabit NAS (no drives) $49.99 + ship @ TigerDirect.com
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=8511612&Sku=LCU-101759700 Seems like this model is discontinued? Half the price of the QNAP 2-bay TS-212P that was on sale recently at Newegg for $99.99 FS. Might be worth looking into. Edit: Newegg link for...

Last thread link is from 7+ years ago when the IX2 first went on clearance and I bought one. This is the PRO side, they are quality units, mine up 24/7 with a pair of WD Red drives 7 years. CON side is that all of these NAS are old, End of Life little real support from Lenovo, but some files etc are still around, and besides myself a number of others bought one or more when they were offered cheap starting last year. Links in top thread are still selling units, but given all we now know and don't know these are not hot deals unless you like a lot of adventure in your deals.
Threads exists if you look for them or I get around to linking them here of people installing some version of Linux and making various software and hardware upgrades.