TS-859-PRO+ QNAP TS-859 PRO+ 8 Bay NAS, Intel Atom 1.80GHz CPU, 1GB DDR3, NAS + iSCSI storage solution, Virtual Disk Drive (VDD) adds flexibility to storage expansion along with ease of management,
TS-859 Pro+ | Hardware Specs | QNAP
Upgrade RAM Memory for QNAP NAS
How to Upgrade the Memory(RAM) of NAS | Qnap Advanced Support
Upgrade RAM Memory for QNAP NAS
How to upgrade the RAM on your QNAP NAS and which one to buy – NAS Compares
Upgrade RAM Memory for QNAP NAS
TS-859 Pro+ - Features | QNAP (Middle East)
QNAP TS-859 Pro Review - A Closer Look - Inside | TechPowerUp
TS-859 Pro+ - Features | QNAP
How to Upgrade the QNAP TS-451 to 16GB of Memory - YouTube