User manual

16
System
TS-451 / TS-451-4G
TS-451S
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 DDR3L
(Expandable RAM, up to
8GB)
Flash
512MB
512MB
Memory replaceable
Yes (DDR3L-1333
SODIMM RAM)
Yes (DDR3L-1333
SODIMM RAM)
Number of SODIMM
slots
2
2
Number of hard drive
slots
4
4 (2.5” only)
IR sensor
Yes (QNAP remote
control: RM-IR002)
Yes (QNAP remote
control: RM-IR002)
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)