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

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QNAP TS-251B Ideal NAS Enclosure

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Synology DS218+ 24TB NAS Solution

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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

Storage Drive Type

2.5”, 3.5”, SATA 3Gb/s, SATA 6Gb/s, SSD, M.2 SSD

2.5”, 3.5”

Hard Drive Capacity
Number Of Slots

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

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

Number of LAN

Number of USB

eSATA

Yes

HDMI

Yes

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)

Certifications

CE, FCC

FCC, CE

Other Information

Manufacturer

Link

Manual

Download