Server case Silverstone RM21-304

Name: Server case Silverstone RM21-304 Rack SST-RM21-304
Brand: SILVERSTONE
SKU: 3979484
Price: 481.49 EUR
Availability: InStock

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Server case Silverstone RM21-304 Rack White

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Offer for legal entity, cashless payment. Why is an item available only for a legal entity?
This is due to long delivery times and limited product warranties.

Short description

The Silverstone RM21-304 Rack is a server case designed for rack mounting, featuring a sleek white finish. It supports HDD sizes of 2.5" and 3.5". With dimensions of 430 mm width, 480 mm depth, and 88.5 mm height, it offers a compact volume of 18.3 L, making it ideal for space-constrained environments. The robust design ensures durability and efficient cooling for your server components.

Available at price 481.49 €: 2 pcs.

Total available for order: 4 pcs.

Warranty: 2 Years

SKU: 3979484

Manufacturer: SILVERSTONE

Learn more

Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

15.07.2026 {{selectedOffer.officeDeliveryString}}

free

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

15.07.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

20.07.2026 {{selectedOffer.courierDeliveryString}}

From 8.25 € (Weight: 9.65 kg)

Parcel couriers

Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa

20.07.2026 {{selectedOffer.parcelStationDeliveryString}}

From 1.99 €

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Payment Methods:

Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay

Available for private customers at price 507.99 €: 2 pcs.

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Product information

Description

The Silverstone RM21-304 Rack White is a compact server case designed for rack mounting in space-constrained environments. Finished in white metal, it supports Mini-ITX and Micro ATX motherboards and accommodates one 3.5" drive bay and one 2.5" drive bay. With external dimensions of 430 mm width, 480 mm depth and 88.5 mm height, the chassis provides a small 18.3 L internal volume while offering a robust build and provisions for basic front I/O connectivity.

Advantages

This rack server case combines a compact footprint with metal construction for durability and stable component mounting. The white finish provides a neutral appearance suitable for professional equipment racks. Integrated front ports include one USB 2.0 and one USB 3.2 Gen 1 Type‑A for convenient access to peripherals and maintenance tasks. Support for both 2.5" and 3.5" drives enables flexible storage configurations, and compatibility with Mini‑ITX and Micro‑ATX motherboards allows selection of low-profile server or workstation components.

Suitable for (tasks / use cases)

Small server deployments in compact racks or wall-mounted enclosures
Edge computing and network appliances
Home or small office NAS and file servers
Laboratory or workshop test rigs requiring a rack form factor
Low-profile virtualization hosts or lightweight compute nodes

Key specifications

Form factor: Rack
Supported motherboard sizes: Mini-ITX, Micro ATX
Drive bays: one 3.5" bay, one 2.5" bay
External dimensions (W×D×H): 430 × 480 × 88.5 mm
Internal volume: 18.3 L
Front I/O: 1 × USB 2.0, 1 × USB 3.2 Gen 1 Type-A
Material: Metal
Color: White
Weight: 6.3 kg

How to use

Install a compatible Mini‑ITX or Micro‑ATX motherboard and secure it to the provided standoffs, then mount storage devices into the 3.5" and 2.5" bays using the appropriate screws or brackets. Connect front-panel USB and power/reset cables to the motherboard headers following the motherboard manual. Position the chassis in a standard 19" rack or compatible mounting rails; ensure clearance for airflow at the front and rear. Route power and network cabling to the rear I/O while keeping cables tidy to maintain airflow and ease of maintenance.

Usage recommendations

For reliable operation, use low-profile expansion cards and consider SSDs or enterprise 2.5" drives to reduce vibration and power consumption. Ensure the rack space provides adequate ventilation and, if needed, add case fans or rack cooling appropriate to your thermal load. Regularly check drive mounting and cable routing after transport or maintenance to preserve system stability.

Specifications

Type:: Server
Form factor:: Rack
Number of 3.5" bays:: 1
Number of 2.5" bays:: 1
Number of 5.25" bays:: 0
USB 2.0 ports quantity:: 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:: 1
Weight:: 6.3 kg
Supported motherboard form factors:: Mini-ITX, Micro ATX
Material:: Metal
Product colour:: White

All features

Design

Type:: Server
Form factor:: Rack
Supported motherboard form factors:: Mini-ITX, Micro ATX
Number of 3.5" bays:: 1
Number of 2.5" bays:: 1
Number of 5.25" bays:: 0
Material:: Metal
Product colour:: White
Rack mounting:: Yes
Number of internal 3.5" bays:: 1
Maximum CPU cooler height:: 68 mm
Number of expansion slots:: 4
Rack capacity:: 2U
Reset button:: Yes
On/off button:: Yes

Ports & interfaces

USB 2.0 ports quantity:: 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:: 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity:: 0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:: 0

Storage

Hot-swap:: Yes
Supported HDD sizes:: 2.5, 3.5

Weight & dimensions

Material thickness:: 1 mm
Weight:: 6.3 kg
Height:: 88.5 mm
Width:: 430 mm
Depth:: 480 mm

Other features

Volume:: 18.3 L

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Warehouse	Stock	Delivery to the store	Store Price
WH354	2	08.07.2026 Best delivery	507.99 €

Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
WH109	2	15.07.2026	481.49 €

507.99 €

Stock: 2

Delivery Date: 08.07.2026 Best delivery

Warehouse: WH354

Available only for legal entities

481.49 €

Stock: 2

Delivery Date: 15.07.2026

Warehouse: WH109

Customer reviews

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Customer questions

FAQ

How much does the Server case Silverstone RM21-304 cost, and is it available for purchase?

The price is 481.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All SILVERSTONE products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SILVERSTONE service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, form factor, number of 3.5" bays, number of 2.5" bays, number of 5.25" bays, usb 2.0 ports quantity, usb 3.2 gen 1 (3.1 gen 1) type-a ports quantity, weight, supported motherboard form factors, material, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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