Synology DiskStation DS1821+ 8-Bay NAS Server, Quad Core Ryzen V1500B 2.2GHz, 4GB RAM, 2x M.2 2280 NVMe Slot, 4x GbE LAN, 2x eSATA, 1x PCIe Expansion Slot, 3 Year Warranty
open for Click & Collect only
Pay only $695.66 and then five easy payments of $250.00 per week*
Laybuy lets you spread the cost of your purchase over 6, interest-free, weekly payments.
Click the button below or select Laybuy as your payment method during the checkout process.
If you do not have a Laybuy account you will be able to create one at checkout.
*Repayments shown above are indicative only and may vary. Ts and Cs and lending criteria apply.
Learn more about Laybuy
Pay only $409.13 and then 25 easy payments of $64.77 per fortnight*
humm lets you spread the cost of your purchase over 26 interest free payments.
Click the button below or select humm as your payment method during the checkout process.
If you do not have a humm account you will be able to create one at checkout.
*Repayments shown above are indicative only and may vary. Ts and Cs and lending criteria apply.
Learn more about humm
Finance from $16.88 per week*
Get what you want at a price you can afford. Choose a finance term below to see the weekly repayment amount and apply online during checkout or in-store.Choose a Finance Term
*Repayments shown above are indicitive only and may vary. Ts and Cs and lending criteria apply.
Learn more about Finance Now
No payments or interest for 12 months available*
Q Card / Mastercard is your perfect shopping partner, combining the benefits of a credit card with the added ability to access a range of interest-free deals and payment holidays.
*Ts and Cs and lending criteria apply.
Learn more about Q Card
COMBO DEALS: Buy Together and SAVE!
Designed for scalability and performance
The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.
Turbocharge and supersize it
DS1821+'s dual M.2 2280 slots allow NVMe SSD caching to boost performance by 20x or more for commonly accessed data. It also supports faster SFP+ or RJ-45 networking to turbocharge existing workflows.
- AMD Ryzen quad-core 2.2 GHz CPU
- 4 GB DDR4, expandable up to 32GB
- 113K 4K random read IOPS
- Dual M.2 2280 slots for NVMe Cache
- Supports 10GbE SFP+ / RJ-45 NIC for turbocharging existing workflows
File sharing and syncing
With comprehensive support for all major file sharing protocols - like CIFS, AFP, NFS, FTP and more - DiskStation lets you centralize files in one place and access them using any device. Take files on the road or easily share them with other people, thanks to Synology's easy file sharing and syncing software.
Bulletproof data backup
Ensure data remains safe by backing up your computers, servers, and virtual machines to DiskStation, and defend yourself from human-error or ransomware with the multi-version backup. Finally, avoid disaster with the ability to easily back up DiskStation to an offsite location or to any major cloud service.
With support for VMware, Citrix, and Microsoft Hyper-V, DiskStation serves as a seamless storage solution for virtualization environments. Additionally, Synology's Virtual Machine Manager also lets you set up and run various virtual machines directly on DiskStation, including Windows, Linux, and Virtual DSM.
Smart video surveillance
Make your own video surveillance hub. Surveillance Station helps you protect your home or business by offering the ability to manage multiple network cameras, check live camera feeds from anywhere with the mobile app, catch suspicious incidents quickly with intelligent alerts, and easily find relevant recordings.
AMD Ryzen V1500B
4-core 2.2 GHz
Hardware Encryption Engine (AES-NI)
4 GB DDR4 ECC SODIMM
Memory Module Pre-installed
4 GB (4 GB x 1)
Total Memory Slots
Maximum Memory Capacity
32 GB (16 GB x 2)
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Maximum Drive Bays with Expansion Unit
18 (DX517 x 2)
M.2 Drive Slots
Compatible Drive Type*
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
Maximum Single Volume Size*
Hot Swappable Drive
"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
Each internal volume (may consist of multiple drives) is expandable up to 108TB.
RJ-45 1GbE LAN Port
4 (with Link Aggregation / Failover support)
USB 3.0 Port
1 x Gen3 x8 slot (x4 link)
exFAT Access is purchased separately in Package Center.
Size (Height x Width x Depth)
166 mm x 343 mm x 243 mm
120 mm x 120 mm x 2 pcs
Fan Speed Mode
Easy Replacement System Fan
Brightness Adjustable Front LED Indicators
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter
AC Input Power Voltage
100 V to 240 V AC
50/60 Hz, Single Phase
59.8 W (Access)
26.18 W (HDD Hibernation)
British Thermal Unit
204.05 BTU/hr (Access)
89.33 BTU/hr (HDD Hibernation)
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75°C; Humidity: 58.2-61.8%
0°C to 40°C (32°F to 104°F)
-20°C to 60°C (-5°F to 140°F)
5% to 95% RH
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Quick Installation Guide X 1
DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G
Expansion Units: DX517
2.5" SATA SSD: SAT5200
M.2 2280 NVMe SSD: SNV3400
10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2
Surveillance Device License Pack
All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
Delivery & Pick-up
The estimated time to ship for each product we sell is detailed on the individual product page just underneath the price. From when your items ship, products typically arrive within 1 working day for North Island deliveries and 2 working days for South Island deliveries. Rural deliveries may take an extra working day, and bulk deliveries may take an extra 2-4 working days.
Same Day Delivery
Need your order in a hurry? PB Tech offers same day delivery for the Auckland, Hamilton & Christchurch region. Simple place your order before 2pm (provided your items are in stock) and select one of our same day delivery options 'Evening Delivery' or 'Urgent 3-hour Delivery' in the checkout. T&C's apply. Learn more about Same Day Delivery.
Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.
To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.
Shipping Security & Insurance
All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.
1 Hour Store Pick-up / Click & Collect
You can pick-up your online order from any of our stores nationwide. You can select which store you want to pick up from at the checkout. Provided the store you select has stock and there's no hold-ups with payment we will have your order ready within 1 hour (during normal trading hours for that store) otherwise it may take up to 5 working days to transfer the stock to the store so your order can be fulfilled. Learn more about our Click & Collect process.
PB Tech regularly ships overseas to Australia and beyond. If you are located in Australia, you can order directly from our Australian site www.pbtech.com/au. If you are from another country you can order from www.pbtech.com
Returns & Warranty
7 day right of exchange
If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.
To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.
If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.
Please note, items purchased on finance cannot be exchanged for a gift card.
Hassle free warranty service
If your product develops a fault within the manufacturer warranty period, you can either contact the manufacturer directly (some manufacturers provide a high level of warranty service - including free pickup or in some cases onsite repair), or return to one of our services centres / stores. Where the product has been directly imported by PB Tech, you need to contact us directly or present the product at any one of our service centres / stores together with your proof of purchase.
If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.
Returning a product / making a warranty claim
To contact the manufacturer directly to troubleshoot your product or to request a warranty repair, please view the list of manufacturer / brand warranty contacts (for products imported directly by PB Tech please return to us directly by completing our request a return form).
To return a product to PB Tech directly, please complete our request a return form.
Or view our returns policy for more information.