QNAP TS-251+ - Page 16

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System
TS-1253U
TS-1253U-RP
CPU
Quad-core Intel
®
Celeron™ 2.0GHz (up
to 2.42GHz)
Quad-core Intel
®
Celeron™ 2.0GHz (up
to 2.42GHz)
Memory
4GB/8GB DDR3L
(Expandable RAM, up
to 8GB)
4GB/8GB DDR3L
(Expandable RAM, up
to 8GB)
Flash
512MB (USB DOM)
512MB (USB DOM)
Memory
replaceable
✔ (Compatible with
DDR3L RAM)
✔ (Compatible with
DDR3L RAM)
Number of RAM
slots
2 (SODIMM)
2 (SODIMM)
Number of hard
drive slots
12
12
Power supply unit
250W
2 x 250W
System
IS-453S
CPU
Quad-core Intel
®
Atom™ 1.91GHz
Memory
IS-453S-2G: 2GB
DDR3L
IS-453S-8G: 8GB
DDR3L
Flash
512MB (USB DOM)
CPU replaceable
-
Memory
replaceable
✔ (Compatible with
DDR3L-1333/1600
SODIMM RAM)
Number of RAM
slots
2 (SODIMM)
Number of hard
drive slots
4 (2.5" only)