QNAP TS-879 Pro. Processor family: Intel Core i3, Processor model: i3-2120, L2 cache: 3 MB. Total storage capacity: 0 GB, Hard drive capacity: 0 GB, Maximum capacity: 24 TB. Internal memory: 2 GB, Internal memory type: DDR3, Flash memory: 512 MB. Compliance industry standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, Cabling technology: 10/100/1000BASE-T(X), Data transfer rate (max): 1000 Mbit/s. Operating system installed: QNAP Storage Manager, Operating system version: 3.5