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Synology RX418 4-Bay 1U Rackmount Expansion Unit for RackStation, eSATA (Diskless)

Price:

$ 1,166.32


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Synology RX418 4-Bay 1U Rackmount Expansion Unit for RackStation, eSATA (Diskless)

https://arcip.com.au/web/image/product.template/15537/image_1920?unique=6bbe47d

Synology RX418 4-bay 1U rackmount expansion unit (diskless) for compatible Synology RackStation NAS. Adds four hot-swappable bays for 3.5in or 2.5in SATA HDDs and 2.5in SATA SSDs over eSATA (cable included). Online volume expansion or dedicated local backup volume, managed from DSM on the host. Short-depth chassis 44 x 430.5 x 290 mm for 2-post and wall-mount racks; RKM114/RKS-02 rail kits optional for 4-post racks. 100 W power supply, 23.26 W in access, 4.28 kg. 3-year hardware warranty. Genuine Synology from ARC IP Networks, authorised Synology reseller with Australian stock.

$ 1,166.32 1166.32 AUD $ 1,166.32 incl. GST

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RX418

Synology RX418 at a glance

The Synology RX418 is a 4-bay 1U expansion unit that adds four 3.5"/2.5" SATA drive bays to a compatible Synology RackStation over eSATA. Its 290 mm deep chassis suits 2-post and wall-mount racks, and drives are managed from DSM on the host for online volume expansion or local backup.

ARC IP Networks is an authorised Synology reseller in Australia. We supply the genuine Synology RX418 from Australian stock.

Drive bays4 x 3.5"/2.5" SATA
Connection1 x eSATA to host
Form factor1U, 290 mm deep
Warranty3 years

Best for

  • Adding capacity to a compatible 1U RackStation without migrating data
  • A dedicated local backup volume in the same rack
  • Space-limited sites with 2-post or wall-mount racks

Key features

Four hot-swappable bays for 3.5" SATA HDDs, 2.5" SATA HDDs or 2.5" SATA SSDs.

Connects to the host RackStation with the included eSATA expansion cable.

Online volume expansion, or use as a dedicated local backup destination for the RackStation.

Drives are managed directly in DSM on the host, with no extra software required.

Short-depth 1U chassis mounts directly in 2-post 19-inch racks, or in 4-post racks with the RKM114/RKS-02 rail kits.

Power recovery synchronised with the RackStation and drive hibernation to save energy.

Synology RX418 specifications

Synology RX418 technical specifications
SpecificationValue
Storage & Compatibility
Drive bays4
Drive types3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD
Hot-swappable drivesYes
RAID managementThrough Synology DSM on the host
Volumes across unitsRS822RP+, RS822+, RS1221RP+, RS1221+, RS820RP+, RS820+, RS1219+, RS819, RS818RP+, RS818+, RS816, RS815RP+, RS815+, RS815
Single-unit volumes onlyRS217
Ports & Physical
External port1 x eSATA
Form factor1U
Size (H x W x D)44 mm x 430.5 mm x 290 mm
Size with server ears44 mm x 480 mm x 325 mm
Weight4.28 kg
Rack installation4-post 19-inch rack (RKM114/RKS-02, sold separately) or 2-post 19-inch rack (direct mounting)
System fans3 x 40 mm
Noise level25.1 dB(A)
Power
Power supply100 W
AC input100 V to 240 V AC, 50/60 Hz, single phase
Power consumption (access)23.26 W
Power consumption (HDD hibernation)6.39 W
Power recoverySynchronised with the Synology RackStation
Environment & Certification
Operating temperature5°C to 35°C
Storage temperature-20°C to 60°C
Operating humidity8% to 80% RH
CertificationsFCC, CE, BSMI, EAC, VCCI, RCM, KC, BIS
EnvironmentRoHS compliant
Warranty
Hardware warranty3 years, extendable to 5 years with EW201

Figures from Synology's official product specifications.

What's in the box

  • Main unit x 1
  • User's guide x 1
  • Accessory pack x 1
  • AC power cord x 1
  • eSATA expansion cable x 1

The Synology RX418 in depth

Simple capacity expansion for 1U RackStations

The RX418 adds four hot-swappable SATA bays to a compatible RackStation through a single eSATA cable. Drives in the RX418 work as though they were internal to the host and are managed directly in DSM, so you can expand a volume online or create a separate volume for local backup.

Short depth for compact racks

At 290 mm deep (325 mm with server ears) the RX418 mounts directly in 2-post and wall-mount racks, while the RKM114 and RKS-02 rail kits suit 4-post racks. Drive hibernation and power synchronised with the host keep energy use down.

Frequently asked questions

Straight answers about the Synology RX418 from the ARC IP Networks team. Last reviewed October 2026.

Synology lists the RS822RP+, RS822+, RS1221RP+, RS1221+, RS820RP+, RS820+, RS1219+, RS819, RS818RP+, RS818+, RS816 and RS815 series for volumes across units, and the RS217 for single-unit volumes. Check Synology's compatibility list for your model before buying.

No. It is diskless, with four bays for 3.5" or 2.5" SATA HDDs or 2.5" SATA SSDs. Synology lists HAT3300 Plus and HAT5300 Enterprise drives and SAT5200 SSDs as optional accessories.

No. It mounts directly in a 2-post 19-inch rack; for a 4-post rack use the RKS-02 sliding or RKM114 mounted rail kit, sold separately.

Synology provides a 3-year hardware warranty from the purchase date, extendable to 5 years with EW201.

ARC IP Networks is an authorised Synology reseller and supplies the RX418 from Australian stock.

Related Synology products

Explore the full Synology range: Shop all Synology · NAS and storage guides

Buy the Synology RX418 in Australia

ARC IP Networks is an authorised Synology reseller, supplying Synology NAS, rackmount storage, drives, surveillance and backup appliances to homes, businesses and integrators across Australia.

  • Genuine Synology with the full manufacturer's warranty, supplied from Australian stock.
  • Australian stock, shipped Australia-wide.
  • Local pre-sales help sizing drives, RAID and backup for your NAS.
  • Trade and project pricing available.

Planning a Synology storage project?

Ask ARC IP Networks for project pricing or a NAS and drive bundle quote, or call us to check the right Synology model for your data.

Brand Synology
Synology RX418 Datasheet.pdf
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Accurate Shipping Costs

Our online shipping calculator is designed to provide a final, accurate shipping cost based on the items in your cart and your delivery postcode. Shipping costs are calculated at checkout based on your order and delivery postcode. The final cost is calculated based on several factors which are automatically accounted for by our system, including:

  • The stock location of the item(s) across our warehouses.
  • Orders with multiple items that may require special packaging.
  • The weight and dimensions of the order (including heavy or oversized items).
  • The delivery courier servicing your specific region.

Delivery Times


 

Standard Processing


Most orders placed by 2pm AEDT are dispatched for next working day delivery. Larger orders may require 1-2 additional business days for processing. If timing is critical, please contact us to discuss expedited options (additional charges may apply).


Delivery Timeframes


Region

Processing Time

Express Delivery

Standard Delivery

VIC, NSW, SA, QLD Metro, TAS

1-2 business days

1-2 business days

2-4 business days

NT, WA, QLD Rural

1-2 business days

1-2 business days

3-5 business days

New Zealand

1-2 business days

2-3 business days

4-10 business days

Please note: Processing times may extend during peak periods such as Christmas and end of financial year.

Free Warehouse Pickup



Save on shipping costs with free pickup from our ARC IP Networks Blackburn warehouse. Simply place your order online or by phone, and collect during business hours (Monday to Friday). Please allow time for picking and packing. For urgent orders, call 1300 100 440 to confirm your order is ready.

ARC IP Networks Pickup Address: 6 George Street, Blackburn, VIC 3130


Insurance & Tracking



All ARC IP Networks shipments are fully insured and trackable. Once dispatched, you'll receive an email with your tracking number and courier website details. If your item is confirmed lost or damaged by our courier, we'll arrange a replacement in consultation with you.


International Shipping



ARC IP Networks ships to New Zealand. Please note:


  • Import duties and taxes vary by country
  • Buyers are responsible for all customs charges
  • Contact your local customs authority before ordering
  • We'll provide required documentation for smooth customs clearance
  • Buyers cover all shipping costs for returns due to refused duties/taxes


Delivery Requirements


Signature Required


All deliveries must be signed for. If you won't be home, contact our Sales Support team to arrange Authority to Leave. Important: Authority to Leave voids shipping insurance if parcels are lost or stolen.


Delivery Restrictions


We do not deliver to PO Boxes or Parcel Lockers as our couriers cannot access them. Orders sent to these addresses will be returned, incurring redelivery fees.


Shipping Issue Resolution


ARC IP Networks works closely with our shipping partners to resolve any delivery issues quickly and fairly:


  1. Confirmation: We verify expected delivery dates with our shipping partners
  2. Investigation: Issues outside normal timeframes trigger formal investigations
  3. Communication: We keep you updated throughout the resolution process
  4. Resolution: Confirmed lost items are replaced or refunded after investigation completion


Please note: Refunds for lost, missing, or delayed orders cannot be processed until shipping partner investigations are complete. This does not affect your rights under the Australian Consumer Law, and refunds or replacements will be provided where required once loss or damage is confirmed.

Warranty & Faulty Products

ARC IP Networks complies with the Australian Consumer Law (ACL).

If a product is faulty, damaged, not of acceptable quality, or does not perform as advertised, you are entitled to a repair, replacement, or refund in accordance with ACL.

Manufacturer Warranty Returns

For faults developing after 14 days within the warranty period:

  • Contact ARC IP Networks first at info@arcip.com.au or 1300 100 440
  • We will assess the issue and coordinate with manufacturers, authorised service centres, or distributors on your behalf
  • Where required, a manufacturer RMA may be arranged
  • ARC IP Networks manages the return process and next steps

Dead on Arrival (DOA)

Products that arrive faulty or damaged must be reported within 14 days of delivery.

ARC IP Networks will arrange assessment, replacement, or refund as appropriate.

Change of Mind & Non-Faulty Returns

Change-of-mind returns must be requested within 14 days of delivery. For change-of-mind returns, the product must be unused, unopened, in its original packaging, and returned with all accessories and documentation. These conditions apply only to change-of-mind returns and do not limit or exclude your rights under the Australian Consumer Law. Some products are not eligible for change-of-mind returns, including:

  • Ex-demo products
  • Clearance or markdown items
  • Special-order items
  • Products clearly marked “No Change-of-Mind Returns”

Important

This does not affect your rights under Australian Consumer Law.

If a product is faulty, not of acceptable quality, or does not meet advertised specifications, it remains eligible for return regardless of category.

Refunds & Processing Timeframes

  • Approved refunds are processed within 7 business days of receiving returned goods
  • Refunds are issued to the original payment method, unless otherwise agreed
  • Replacement or repair may be offered where appropriate
  • Store credit may be offered only with customer consent

Handling fees and non-returnable service charges may not be refundable where permitted by law.


Restocking Fees

For approved change-of-mind or non-faulty returns, a 15% restocking fee applies.

  • Any applicable restocking fee will be clearly communicated prior to return approval
  • The fee will be deducted from the refund amount
  • Restocking fees do not apply to returns made under the Australian Consumer Law, including faulty, damaged, or misrepresented goods.

Return Shipping Costs

  • Change-of-mind returns: The customer is responsible for return shipping costs.
  • Faulty or defective products: ARC IP Networks covers return shipping under Australian Consumer Law.

Non-Warranty Repairs

For issues not covered by warranty:

  • ARC IP Networks will provide a quote before proceeding
  • Customers are responsible for all shipping and service costs
  • No repairs are undertaken without customer approval

Return Methods

Returns may be made:

  • In-store at ARC IP Networks – 6 George Street, Blackburn VIC 3130
  • Or by shipment as instructed by our support team

Proof of purchase is required for all returns.

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