Qnap TS-251B-4G-US Network Attachment Storage Ts-251b-4g-us 2bay 4gb Celeron J3355 Dual-core 2.0ghz Ddr3l Retail

CPU
Intel Celeron J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
Architecture: 64-bit x86
Graphics
Intel HD Graphics 500
Encryption Acceleration
Yes(AES-NI)
System Memory
4 GB DDR3L (1 x 4 GB)
Maximum Memory
8 GB (2 x 4 GB)
Memory Slot
2 x SODIMM DDR3L up to 1866, with dual-channel support
Flash Memory
4GB eMMC
Drive Bay
2 x 3.5" SATA 6 Gbps HDD
Drive Compatibility
- 3.5" SATA 6Gb/s HDD
- 2.5" SATA 6Gb/s HDD
- 2.5" SATA 6Gb/s SSD
SSD Cache Acceleration Support
3.5" drive bay: 1 to 2
Gigabit Ethernet Port
1 x RJ45
USB Port
2 x USB 3.0, 3 x USB 2.0
USB One Touch Copy
Front: USB 3.0 Type-A
PCIe Slot
1 PCIe 2.0 x2 slot
HDMI Output
1 x HDMI v1.4b (up to 3840 x 2160 resolution at 30 Hz)
IR sensor
Yes, supporting QNAP RM-IR004 remote control (optional purchase)
Audio
1 x speaker, 2 x MIC Input
1 x 3.5 mm line-out jack
Alarm buzzer
Note: You cannot use the speakers and the line-out jack simultaneously.
LED Indicators
Status/power, LAN, USB, HDD 1 - 2
Buttons
Power, Reset, USB One-touch-copy
System Warning
Alarm buzzer and voice prompts