![QNAP TS-251+ Hardware User Manual Download Page 24](http://html1.mh-extra.com/html/qnap/ts-251/ts-251_hardware-user-manual_3644266024.webp)
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System
TVS-863-4G /
TVS-863-8G
TVS-863+-8G /
TVS-863+-16G
CPU
Quad-core AMD
2.4GHz
Quad-core AMD
2.4GHz
Memory
4/8 GB DDR3L
(Expandable RAM, up
to 16GB)
8/16 GB DDR3L
(Expandable RAM, up
to 16GB)
Flash
512MB
512MB
Memory
replaceable
✔
(Compatible with
DDR3L-1600 RAM)
✔
(Compatible with
DDR3L-1600 RAM)
Number of RAM
slots
2(SODIMM)
2(SODIMM)
Number of hard
drive slots
8
8
PCI-E expansion
slot
1
1 (Pre-installed
1-port 10GbE NIC)
HDMI
✔
✔
LCD panel
✔
✔
IR sensor
✔
(QNAP remote
control: RM-IR002)
✔
(QNAP remote
control: RM-IR002)