Product Comparison: QNAP TS-251A vs QNAP TS-251


General Specifications
Brand
QNAP
QNAP
Model
TS-251A
TS-251
Origin
Taiwan
Taiwan
About the Product
The TS-251A provides the innovative USB QuickAccess port that allows you to quickly complete the first-time NAS installation and to then directly access files and data stored on the NAS. It also supports two additional transmission modes: Ethernet NAS mode and iSCSI SAN block-based mode. Combining USB QuickAccess, NAS and iSCSI-SAN into one box, the TS-251A is a powerful but easy-to-use storage solution ideal for backup, synchronization, remote access, and entertainment. It greatly helps to boost productivity and can meet the demands of photographers and audiovisual enthusiasts for direct, quick access to files. The TS-251A is powered by a high-performance 14nm Intel® Celeron® N3060 dual-core 1.6GHz processor, and supports 4K video playback and transcoding.
The TS-251 provides a high performance & high capacity storage solution for SOHO & home, workgroup, and SMB users. Powered by the advanced QTS operating system, the TS-251 performs as an easy-to-use yet powerful NAS for data backup, file synchronization, remote access, home entertainment, and is ideal for users to build a personal cloud to access their data easily.
Key Specs
Hard Drive Capacity
24 TB
24 TB
Number Of Slots
2 -bay
2 -bay
Storage Drive Type
3.5”, 2.5”, SSD, SATA 6Gb/s, SATA 3Gb/s
3.5”, 2.5”, SSD, SATA 6Gb/s, SATA 3Gb/s
Size & Weight
Color
White
White
Height
6.65 in.
6.65 in.
Width
4.02 in.
4.02 in.
Depth
8.62 in.
8.62 in.
Weight
2.82 lbs.
2.82 lbs.
Features
CPU
14nm Intel® Celeron® N3060 dual-core 1.6GHz (up to 2.48GHz)
Intel® Celeron® 2.41GHz dual-core processor (burst up to 2.58GHz)
RAM
2 GB
1 GB
RAID Support
RAID 0, RAID 1, RAID 5, JBOD
RAID 0, RAID 1, RAID 5, JBOD
Extras
14nm Intel® Celeron® N3060 dual-core CPU and hardware-accelerated encryption engine, Direct access to files with the USB QuickAccess port, USB QuickAccess/NAS/iSCSI SAN triple solution, Superior 4K video transcoding, Enjoy media freely with multi-zone multimedia controls, Enjoy an exclusive karaoke experience with OceanKTV, QTS – Simple and powerful, File synchronization across devices and clouds, Cross-platform file sharing, centralized data storage, Centralize backup, restoration and synchronization with Hybrid Backup Sync, Restore files with Snapshot for Volume & LUN, Qsirch - a smarter, faster way to search, QmailAgent: a mailroom center for your private cloud, QTS-Linux dual systems for IoT applications, Storage for hosting virtual machines and containerized applications, Comprehensive surveillance solution providing 24/7 security
QTS - Simple and efficient, Qsirch – A smarter, faster way to search, Easily build your personal cloud and access anywhere, Real-time & offline HD video transcoding, Stream media via DLNA, AirPlay, Chromecast and Plex, Extend the functionality of the TS-251 with Virtualization, Cross-platform file sharing, centralized data storage, Well-rounded backup solutions to secure data, Disaster recovery solutions bring peace of mind, Archive your photo memories. Share your life., Build your home music library and enjoy music anywhere, 24/7 download center, Dropbox-like file synchronization across computers and mobile devices, Comprehensive surveillance solution providing 24/7 security, Signage Station - Creatively present your animated content, Access, use, sync and enjoy with your tablets and smartphones, A private space for work & sharing, Install-on-demand apps to extend NAS functionality, LED indicators with adjustable brightness controls, Economical storage expansion with scale-up solution, Energy-saving, NAS management can be just that easy.
Included Software
QTS (Linux for Build-in System), Transmission, Joomla!, phpMyAdmin, WordPress, AjaXplorer, vtigerCRM, Magento, eyeOS, QUSBCam, Tomcat, GLPI, Mono, XDove, OpenLDAP, Optware IPKG, Python, Java, iStat
QTS (Linux for Build-in System), Transmission, Joomla!, phpMyAdmin, WordPress, AjaXplorer, vtigerCRM, eyeOS, Magento, GLPI, QUSBCam, Tomcat, Mono, XDove, OpenLDAP, Optware IPKG, Python, Java, iStat
Interfaces
LAN Speed
1000 Mbps
1000 Mbps
Number of LAN
2
2
Number of USB
4
4
eSATA
No
No
HDMI
Yes
Yes
Warranty / Certifications
Manufacturer Warranty
2 year(s)
2 year(s)
Certifications
EAC, FCC, CE, NOM
EAC, FCC, CE, NOM
Other Information
Manufacturer


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