QNAP TS-253 Pro User Manual

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3. To remove installed memory modules, gently pull the retention clips outwards on each
side so that the module tilts up at a 30-degree angle for easy removal. Remove module.
4. Hold the memory module by grasping its edges. Align the notch on the RAM module
with the ridge in the memory socket. Slide the memory module into the socket at a
30-degree angle. Ensure that the module is firmly inserted into the socket and that
the retention clamps are secure.
Note: The maximum supported memory is 64GB.
For one SODIMM module, insert memory into slot A2 or B2.
For two SODIMM modules using dual channel, insert memory into A1 and A2, B1 and B2,
or A2 and B2.
For three SODIMM modules, insert memory into A1 and A2 and B2 or B1 and B2 and A2.

QNAP TS-253 Pro Specifications

General

RAID levels	0, 1, JBOD
RAID support	Yes
Storage drive size	2.5/3.5 \
Storage drive capacity	- GB
Supported file systems	ext3, ext4, FAT32, HFS+, NTFS
Storage drive interface	Serial ATA II, Serial ATA III
Storage drives installed	No
Installed storage drive type	-
Supported storage drive types	HDD & SSD
Total installed storage capacity	0 TB
Maximum supported storage capacity	- TB
Number of storage drives installed	0
Number of storage drives supported	2
Processor cores	4
Processor family	Intel® Celeron®
Processor frequency	2 GHz
Flash memory	512 MB
Internal memory	8 GB
Internal memory type	DDR3L
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Supported network protocols	CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3
Chassis type	Tower
Cooling type	Active
Fan diameter	70 mm
Product color	Black
Number of fans	1 fan(s)
Cable lock slot type	Kensington
Type	NAS
Device class	Home & Home Office
Backup features	Cloud, iSCSI LUN
Security algorithms	256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
Operating system version	4.1
Operating system installed	QNAP Turbo System
Fan voltage	12 V
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Power consumption (sleep)	0.74 W
Power consumption (typical)	16.34 W
Power supply unit (PSU) capacity	90 W
Cables included	LAN (RJ-45)
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 95 %

Weight and Dimensions

Depth	216 mm
Width	102 mm
Height	150 mm
Weight	1740 g
Package weight	2920 g