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The N10850 came with 2.03.08 firmware. Since Thecus standardizes its feature set across its products we won't be covering the features here. A look at the N4800 review will provide a good feature overview and you can use the online demo to get a feel for the user interface. The N7510 review describes the newer Data Guard, Data Burn, Local Display and Transcoding Service modules.

For quick reference, here is a summary of the main Thecus OS features:

General Features

  • Network file sharing via SMB/CIFS, NFS, AFP
  • Hot-swappable JBOD, RAID 0, 1, 5, 6, 10 with hot spare for RAID 1, 5, 6 and 10
  • Optional AES256 volume encryption
  • SMB/CIFS, HTTP/HTTPS, NFS v4, AFP file access
  • Online RAID expansion and RAID level migration
  • FTP/SFTP with upload / download bandwidth control
  • HTTP / HTTPs admin access
  • Bonjour / UPNP support
  • Joins NT Domain / Active Directories for account information
  • Dual Gigabit Ethernet ports supporting Load balance, Failover, 802.3ad, Balance-XOR, Balance-TLB, Balance-ALB modes
  • IPv6 support (very basic)
  • iSCSI target and initiator support
  • iSCSI Thin Provisioning, MPIO, MCS, Clustering and Persistent Group Reservation supported
  • ISO mounts
  • User quotas
  • Email alerts
  • Logging
  • USB print serving
  • Scheduled power down/up
  • Programmable idle disk spindown
  • Apache webserver (via installable module)


  • Scheduled Backup to USB and eSATA drives (via installable module)
  • Schedulable To/from rsync backup with optional encryption and compression (via installable module)
  • Apple Time Machine support
  • Client Backup: Acronis True Image (Windows); Thecus Backup Utility (Windows/Mac OS X)
  • ACL backup/restore
  • Schedulable DOM backup


  • BitTorrent / HTTP / FTP download service w/ scheduling
  • iTunes server
  • UPnP AV / DLNA media server (via installable module - Twonkykmedia)
  • Picazza photo album (via installable module)
  • Video surveillance support (via installable module)


  • Remote monitoring and admin app (Thecus Dashboard - iOS and Android)
  • File and media access app (ThecusShare - iOS and Android)


I tested the N10850 with 2.03.08 firmware, using our NAS test process with RAID 0, 5 and 10 volumes. As is our standard practice, four drives were configured in each volume type.

Windows File Copy tests show well-matched read and write throughput across all tested volume formats. Highest write throughput measured was 106 MB/s for RAID 5 and highest read was 105 MB/s for RAID 0.

Thecus N10850 benchmark summary

Thecus N10850 benchmark summary

Intel NASPT File Copy results measured about 20 MB/s higher for write and slightly lower for read. Highest write throughput of 133 MB/s was in RAID 0; highest read was 100 MB/s, also in RAID 0. Keep in mind the maximum theoretical throughput with a Gigabit Ethernet connection is 125 MB/s. So results higher than that have some write cache effect baked in.

iSCSI performance of 91 MB/s for write rank the N10850 about mid-chart and 95 MB/s for read put it at the top of all NASes tested.

Attached backup tests were run with our standard Startech USB 3.0 eSATA to SATA Hard Drive Docking Station (SATDOCKU3SEF) containing a WD Velociraptor WD3000HLFS 300 GB drive. Best backup throughput of 112 MB/s was obtained using eSATA and a FAT-formatted drive and put the N10850 at the top of that chart.

Since Thecus doesn't have a drive formatter, I could not test backup for an EXT3 formatted drive. I should note the unusually high 41 MB/s result for a USB 2.0 connected NTFS formatted drive, which is 10 MB/s higher than I have previously measured from any product. I ran the test twice to be sure that it wasn't an error.

Network backup to a DeltaCopy target on our NAS Testbed system measured 39 MB/s. For comparison, best network backup measured to date is still 44 MB/s with a NETGEAR ReadyNAS Pro 2.

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