# SFP Module Dell RK0CX-RFB 10Gb Multimode SR — optical transceiver for short-reach fiber

**URL:** https://aio.lv/en/product--dell-rk0cx-rfb--11060971
**Data updated:** 2026-01-12 19:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** Dell
**Manufacturer code:** RK0CX-RFB
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 25.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dell-rk0cx-rfb--11060971

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Dell SFP Module RK0CX-RFB is a 10Gb Multimode SR optical transceiver designed for short-reach fibre links. It provides a compact SFP+ form factor for installation in compatible switches and servers, supporting high-speed data transmission over multimode fiber for LAN and data centre interconnects. Suitable for upgrading or replacing existing 10Gb multimode ports.

## Long description

Dell SFP Module RK0CX-RFB 10Gb Multimode SR is an SFP+ optical transceiver engineered for short-reach fibre links. The module fits SFP+ slots in compatible Dell and third-party switches and servers, enabling 10 Gigabit Ethernet connections over multimode fiber (MMF). It is intended for LAN and data center interconnects where reliable, compact 10Gb connectivity is required. The small SFP+ form factor and multimode SR optics make it suitable for typical short-distance links within racks, between adjacent racks, or across short spans in enterprise networks.
Advantages
The RK0CX-RFB supports 10Gbps throughput in a compact SFP+ package and is optimized for multimode SR fibre, providing low-latency, high-bandwidth links for short distances. It is compatible with standard LC connectors and common multimode fibre types (OM1/OM2/OM3/OM4) as specified by the manufacturer, simplifying deployment in existing cabling infrastructures. The transceiver is designed for hot-swappable installation and integrates with network equipment that accepts SFP+ modules, facilitating upgrades or replacements without extended downtime.
Suitable for (tasks / use cases)
10 Gigabit Ethernet connections inside data centres and server rooms
Short-reach links between switches, routers, and servers within a building or campus
Upgrading or replacing existing 10Gb multimode ports in compatible network equipment
High-bandwidth LAN interconnects and aggregation links
Key specifications
Manufacturer: Dell
Model / MPN: RK0CX-RFB
Form factor: SFP+ (hot-pluggable)
Data rate: 10 Gbps
Media type: Multimode fiber (MMF), SR optics
Connector type: Duplex LC
How to use
Ensure the target switch or server supports SFP+ transceivers and is compatible with third-party modules if applicable. Power down is generally not required because the module is hot-swappable; however, follow your equipment manufacturer’s hot-swap procedures. Insert the RK0CX-RFB into an available SFP+ slot until it latches, then connect duplex LC multimode fiber cables to the transmit and receive ports, observing proper polarity. Verify link status and speed through the device management interface or LED indicators. If the device requires specific configuration, consult the switch or server documentation to enable the 10Gb port.
Usage recommendations
Use high-quality multimode fiber (OM3 or OM4 recommended for best 10Gb performance over typical short-reach distances) and maintain correct cable polarity. Keep dust caps on connectors when not in use, inspect and clean fiber ends before mating, and follow ESD precautions when handling the transceiver to avoid damage. Verify firmware and compatibility notes for your network equipment to ensure optimal operation.

## FAQ

### How much does the SFP Module Dell RK0CX-RFB 10Gb Multimode SR cost, and is it available for purchase?

The price is 30.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 06.07.2026 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: Bank transfer. 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 Dell 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 Dell 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. More information about warranty service: https://aio.lv/en/warranty

## Image

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