BUFFALO TS5410RN1604 16TB (4 x 4TB) Network Storage Standards: IEEE802.3an (10GBASE-T), IEEE802.3bz (5GBASE-T/2.5GBASE-T), IEEE802.3ab (1000BASE-T), IEEE802.3u (100BASE-TX), IEEE802.3 (10BASE-T) Port RJ-45: 1 x 10GbE, 2 x 1GbE Port USB: 3 x USB3.0 HDD Interface: 4 x SATA (4 x Bay) Form Factor: 4U Operating System: Windows 10, Windows 8.1 (32-bit / 64-bit), Windows 7 (32-bit / 64-bit), Windows Server 2012, Windows Server 2012R2, Windows Server 2008, Windows Server 2008R2, Mac OS X 10.9 or later Processor: Annapurna Labs Alpine Processor AL314 (1.7 GHz Quad-Core) Default/ Max. Memory: 4GB DDR3 with ECC