QNAP TS-831XU-RP NAS 24TB (6×4TB WD Red) 10GbE
Price includes warranty
QNAP
Product Specification
| Form Factor | 8-Bay Rackmount NAS |
| Storage Capacity | 24TB |
| Drive Configuration | 6 × 4TB WD Red NAS Drives |
| Network Connectivity | Dual 10GbE SFP+ ports |
| RAID Support | RAID 0/1/5/6/10 |
| Power Supply | Redundant power supply |
Refurbished · Tested
QNAP TS-831XU-RP 8-bay rackmount NAS with 24TB on six 4TB WD Red drives, for 10GbE file and backup storage.
This refurbished QNAP TS-831XU-RP is an 8-bay rackmount NAS, supplied under our SKU NAS-QNAP-831XU-24TB-6x4TB with six 4TB WD Red NAS drives fitted for 24TB of raw capacity and two bays left empty. It runs QNAP's QTS operating system, connects to the network through two 10GbE SFP+ ports and has redundant power supplies, so the loss of one supply does not take the storage offline. Buyers in Qatar usually take it as a central file server, a backup repository, an iSCSI or NFS datastore for a small virtualisation cluster, or a CCTV archive. Because it arrives already populated with matched NAS drives, a Doha IT team can build a RAID volume on the day it is racked instead of sourcing disks separately.
NAS-QNAP-831XU-24TB-6x4TBFull configuration
The 24TB figure is raw capacity across the six fitted drives. Usable space depends on the RAID level you choose, and QTS reports capacity in binary units, so the formatted figure always reads lower than the drive labels.
What this configuration suits
Compare the workload you have in mind against the fitted components.
With six 4TB drives, RAID 5 gives about 20TB usable with one drive of fault tolerance, RAID 6 gives about 16TB with two, and RAID 10 gives about 12TB with better random performance. For backup and CCTV retention, RAID 6 is the sensible default because rebuilds on 4TB drives take many hours.
The two 10GbE SFP+ ports suit a server room with an SFP+ switch, where several hosts or backup jobs hit the NAS at once. They can also be used for separate storage and user networks, or connected directly to a host for iSCSI.
Six spinning NAS drives handle sequential backup and video streams comfortably but will not match SSD storage for busy virtual machines or databases. Treat it as capacity storage, not a primary datastore for latency-sensitive workloads.
Upgrade paths
- Two empty bays: add two more 4TB drives to bring raw capacity to 32TB, either expanding the existing array or creating a second volume.
- QTS supports online RAID capacity expansion and RAID level migration, so a RAID 5 set can grow or move to RAID 6 without rebuilding from scratch.
- Capacity can also be raised by replacing drives with larger ones one at a time, letting the array rebuild after each swap.
- The SFP+ ports accept either fibre transceivers or direct attach copper cables, so cabling can change as your switch infrastructure changes.
Compatibility
For the empty bays, use 3.5 inch SATA drives rated for NAS duty. Within one RAID array, match the existing 4TB capacity; a larger drive works but only 4TB of it is used. Mixing drive models in one array is allowed, but keeping the same WD Red line makes performance and rebuild times predictable. On the network side, the ports are standard SFP+ cages.
| Item | What fits | Note |
|---|---|---|
| Drives | 3.5 inch SATA NAS drives | Match 4TB capacity within an array |
| Network modules | 10GbE SFP+ transceivers | SR optics for multimode fibre are typical |
| Network cables | SFP+ direct attach copper | Suits short runs to a switch in the same rack |
| Storage clients | Windows, Linux, VMware hosts | Over SMB, NFS or iSCSI |
Part numbers and identification
Condition & testing
- Powered on and boot verified
- Ports tested, configuration reset to factory defaults
- Fully working; minor cosmetic marks are possible on refurbished units.
- 6-month warranty on every unit we sell, with installation and support across Qatar.
What ships with this device
Images are for illustration. The unit supplied is the one described in the specification and may differ cosmetically.
Our team in Doha answers specification and compatibility questions during working hours.
Ask on WhatsApp sales@serverdove.comWhat type of storage system is the QNAP TS-831XU-RP?
It is an enterprise rackmount NAS designed for business storage, backups, virtualization, and other shared data applications.
How much storage is included with this NAS?
This configuration includes 24TB of storage using 6 × 4TB WD Red NAS drives.
Does the TS-831XU-RP support high-speed networking?
Yes, it includes dual 10GbE SFP+ ports for faster network connectivity in business environments.
What RAID options are available?
The system supports RAID 0, 1, 5, 6, and 10, giving flexibility for performance and redundancy needs.
Is this NAS suitable for CCTV storage?
Yes, the TS-831XU-RP is suitable for CCTV storage and other continuous recording workloads.
Does this model include redundant power?
Yes, this configuration includes a redundant power supply for added resilience in rack environments.
What does refurbished mean at ServerDove?
Off-lease or decommissioned enterprise hardware that we clean, test and reset in Doha. Every unit goes through POST, burn-in, memory and drive checks and a power-supply check, with firmware and BIOS returned to defaults and drives securely erased.
Can I ask about the exact unit before I buy?
Yes. Message us the SKU on WhatsApp and we will confirm the condition and configuration of the unit in stock, with photos if you want them.
How fast is delivery in Qatar?
Orders ship from Doha and arrive within one working day anywhere in Qatar. Delivery is free on orders over QAR 300.
Can I collect in person?
Yes, from Nuaija Office 7, Doha, usually within 24 hours of ordering. Choose pick-up at checkout and we will message you when it is ready.
What warranty is included?
A 6-month hardware warranty from the delivery date, covering the unit as supplied. If a part fails we repair or replace it. Full terms are on the warranty page.
What is your return policy?
If the unit arrives faulty or not as described, tell us and we will collect it and replace or refund it. Full terms are on the Refund Policy page.
Which payment methods do you accept?
Visa, Mastercard and American Express online. Bank transfer is available for company orders; contact us for details.
Is the price shown the final price?
Yes. The price shown is what you pay; nothing is added at checkout, and every order ships with an invoice in your name or your company's name.
Why buy refurbished
Enterprise hardware, tested in Doha, at a fraction of the price of new
Every unit we sell has already proven itself in a data centre. We test it again, grade it, and back it with a warranty before it leaves our stock.
Tested before it ships
POST, burn-in, memory and power-supply checks on every unit. Anything that fails is repaired or pulled from stock, not sold.
Same performance, lower cost
A Xeon runs the same workloads whether it is new or two years old. Spend the difference on more CPUs, memory or storage.
In stock, not on order
New enterprise hardware can take weeks or months to arrive. Ours is on the shelf in Doha and delivered across Qatar within a day.
Warranty and local support
Every unit is covered. Installation, configuration and hardware support are handled by our own team in Qatar, not a call centre abroad.