Product Comparison: QNAP TS-251B vs Synology DS218+


General Specifications
Brand
QNAP
Synology
Model
TS-251B
DS218+
Origin
China
Taiwan
About the Product
The TS-251B combines secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251B is QNAP’s first home/SOHO NAS that allows you to flexibly extend its functionality and potential applications.
Equipped with a dual-core processor and AES-NI hardware encryption engine, DS218+ delivers exceptional file transfer speeds. Supporting real-time 4K video streaming, DS218+ is ideal not only for protecting critical data but for storing ultra-high definition media contents as well.
Key Specs
Hard Drive Capacity
14 TB
24 TB
Number Of Slots
2 -bay
2 -bay
Storage Drive Type
2.5”, 3.5”, SATA 3Gb/s, SATA 6Gb/s, SSD, M.2 SSD
2.5”, 3.5”
What customers say about "Key Specs"
QNAP TS-251B Ideal NAS Enclosure
  • Easy to install the drives. Easy to set up and start using.
  • Complete access to the underlying Unix system allows for plenty of flexibility. Great hard drive capacity.
  • I installed two 4TB Seagate NAS rated hard drives, and set them up as a RAID 1, so that I have redundant storage in the event of a drive failure. It works great.
  • I used WD Blue drives in it and it works great!
  • Extremely slow when hard drive encryption is enabled.
Synology DS218+ 24TB NAS Solution
  • The DS218+ was a huge step up even though I'm not taking advantage of all the different applications that are available for it. Great number of slots.
Size & Weight
Color
White
Black
Height
6.61 in.
9.1 in.
Width
4.13 in.
4.2 in.
Depth
8.9 in.
6.5 in.
Weight
3.37 lbs.
2.87 lbs.
Features
CPU
Intel Celeron J3355
Intel Celeron J3355
RAM
4 GB
2 GB
RAID Support
RAID 0, RAID 1, JBOD, Single
Synology Hybrid RAID, Basic, RAID 0, RAID 1
Extras
4K Media Playback, AES-NI hardware-accelerated encryption, Multi-OS Platform, Multi-point file backup, IFTTT Agent
Compact yet powerful storage solution, 4K Multimedia Server, Digital asset protection, Easy file access with QuickConnect
Included Software
QTS 4.3.4, iSCSI, myQNAPcloud, Qsync, Qfiling, Hybrid Backup Sync, Qsirch, OceanKTV, Qcontactz, Snapshot
NFS Plug-in for VMware VAAI, Snapshot Manager for Windows, Snapshot Manager for VMware, Cloud Sync Decryption Tool, Cloud Station Backup, Cloud Station Drive, Evidence Integrity Authenticator, Photo Station Uploader, Cloud Station, Synology Assistant, Synology Web Assistant
What customers say about "Features"
QNAP TS-251B Ideal NAS Enclosure
  • Easy to setup. Even getting the bonding interfaces is super simple. Nice Web UI. You also get the most usual options for RAID or setup you may want.
  • Runs very quiet. Nice selection of applications. Clients, servers, etc. To add a little bit to the basic NAS. Backup to other places.
  • I have a couple of Macs along with PC's. It was fairly easy to setup Time Machine.
  • Nice selection of apps from QNAP for IOS and Android.
  • Easy to set up, lots of options and software.
Synology DS218+ 24TB NAS Solution
  • Syslog server is great. Really handy if your router or firewall can send logs.
  • To start off out of the box the L2TP VPN never worked.
Interfaces
LAN Speed
1000 Mbps
1000 Mbps
Number of LAN
1
1
Number of USB
5
3
eSATA
No
Yes
HDMI
Yes
No
What customers say about "Interfaces"
QNAP TS-251B Ideal NAS Enclosure
  • I bought this primarily to be the central repository of stuff for my home. I consider HDMI a nice bonus.
  • HDs can be upgraded to higher capacity. RAM can be upgraded as well. Has HDMI output.
  • Initial setup was even easier using the provided HDMI output and keyboard.
  • Being able to easily upgrade the RAM was nice, as is the option to connect to video through HDMI.
  • Overall meet my expectations and more, especially the HDMI connection to my TV. Great connectivity options.
Warranty / Certifications
Manufacturer Warranty
2 year(s)
2 year(s)
Certifications
CE, FCC
FCC, CE
Other Information
Manufacturer


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