QNAP TS-853A-4G-US (4GB RAM version) 8-Bay Professional-grade NAS. Intel Braswell Quad-core 1.6 GHz CPU with Media Transcoding Form Factor: 8-Bay Port RJ-45: 4 x 10/100/1000M Port USB: 4 x USB 3.0 port (Front:1, Rear:3) HDD Interface: 8 x SATA (8 x Bay) Processor: 14 nm Intel Celeron N3150 1.6 GHz quad-core processor (burst up to 2.08 GHz) Default/ Max. Memory: 4GB (2 x 2GB) LEDs: Status, USB, HDD 1-8 Port Others: 4 x Gigabit RJ-45 Ethernet port