User manual

System TS-651 / TS-651-4G TS-851 / TS-851-4G
CPU
Dual-core Intel
®
Celeron™ 2.41 GHz (up
to 2.58GHz)
Dual-core Intel
®
Celeron™ 2.41 GHz (up
to 2.58GHz)
Memory
1GB / 4GB DDR3L
(Expandable RAM, up to
8GB)
1GB / 4GB DDR3L
(Expandable RAM, up to
8GB)
Flash 512MB 512MB
Memory replaceable
Yes (DDR3L-1333
SODIMM DRAM)
Yes (DDR3L-1333
SODIMM DRAM)
Number of SODIMM
slots
2 2
Number of hard drive
slots
6 8
IR sensor
Yes (QNAP remote
control: RM-IR002)
Yes (QNAP remote
control: RM-IR002)
System HS-251 / HS-251-2G
CPU
Dual-core Intel
®
Celeron™ 2.41 GHz (up
to 2.58GHz)
Memory 1GB / 2GB DDR3L
Flash 512MB
CPU replaceable No
Memory replaceable No
Number of SODIMM
slots
0
Number of hard drive
slots
2
IR sensor
Yes (QNAP remote
control: RM-IR002)
18