17
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)
System
TS-253 Pro /
TS-253 Pro-8G
TS-453 Pro /
TS-453 Pro-8G
TS-653 Pro /
TS-653 Pro-8G
CPU
Quad-core Intel
®
Celeron™ 2.0 GHz (up
to 2.41GHz)
Quad-core Intel
®
Celeron™ 2.0 GHz (up
to 2.41GHz)
Quad-core Intel
®
Celeron™ 2.0 GHz (up
to 2.41GHz)
Memory
2GB / 8GB DDR3L
(Expandable RAM, up to
8GB)
2GB / 8GB DDR3L
(Expandable RAM, up to
8GB)
2GB / 8GB DDR3L
(Expandable RAM, up to
8GB)
Flash
512MB
512MB
512MB
Memory replaceable
Yes (DDR3L-1333
SODIMM DRAM)
Yes (DDR3L-1333
SODIMM DRAM)
Yes (DDR3L-1333
SODIMM DRAM)
Number of SODIMM
slots
2
2
2
Number of hard drive
slots
2
4
6
LCD panel
No
Yes
Yes
IR sensor
Yes (QNAP remote
control: RM-IR002)
Yes (QNAP remote
control: RM-IR002)
Yes (QNAP remote
control: RM-IR002)