# SFP+ Copper Module CBO 838327-B21-BO 10GBASE-T, up to 30 m

**URL:** https://aio.lv/en/product--blueoptics-838327-b21-bo--4466960
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 838327-B21-BO
**EAN:** 4063232017716
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 128.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 106.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-838327-b21-bo--4466960

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Copper SFP+ transceiver module CBO 838327-B21-BO supporting 10GBASE-T over twisted-pair copper cabling with a reach of up to 30 meters. Designed for 10 Gigabit Ethernet links in servers, switches and network appliances, it provides a compact interface for short-distance copper connections and compatibility with SFP+ ports that accept 10GBASE-T modules.

## Long description

The SFP+ Copper Module CBO 838327-B21-BO 10GBASE-T is a compact 10 Gigabit Ethernet transceiver designed for short-distance copper connections over twisted-pair cabling. Supporting 10GBASE-T at full duplex, this module fits SFP+ ports that accept 10GBASE-T modules and is intended for use in servers, switches and network appliances where a copper interface is preferred or existing infrastructure requires RJ45 connectivity. The module supports a reach of up to 30 meters over Cat6/Cat6a class cabling and delivers a space-saving alternative to larger RJ45 ports while preserving 10 Gbps bandwidth for local interconnects.
Advantages
This SFP+ copper transceiver offers a small form factor that simplifies port density and cabling management in rack-mounted equipment. It enables 10GBASE-T connectivity without modifying existing copper cabling plants, providing compatibility with standard twisted-pair Ethernet infrastructure. The module reduces the need for separate media converters and allows hot-pluggable installation into compatible SFP+ slots for rapid deployment and maintenance.
Suitable for
 Short-reach 10 Gigabit connections between switches and access layer devices
 Server uplinks to top-of-rack or aggregation switches
 Network appliances and SAN front-end connectivity requiring RJ45 copper links
 Retrofit or mixed-media environments where copper cabling is retained
Key specifications
 Interface type: SFP+ form factor supporting 10GBASE-T
 Data rate: 10 Gbps, full duplex
 Media: Twisted-pair copper (RJ45)
 Maximum reach: up to 30 meters over suitable Cat6/Cat6a cabling
 Connector: 8P8C (RJ45) compatible
 Compatibility: Designed for devices with SFP+ ports that accept 10GBASE-T modules
How to use
Install the SFP+ Copper Module into an empty SFP+ slot on the target switch, server or network appliance while the host device is powered down or following the vendor’s hot-swap guidelines. Connect a suitable Cat6 or Cat6a twisted-pair cable to the module’s RJ45 connector and to the remote device. Ensure that the host device firmware or operating system recognizes 10GBASE-T SFP+ modules and that link settings are configured for 10 Gbps full duplex. Monitor link LEDs or management interfaces to verify link negotiation and operational status.
Usage recommendations
For reliable 10 Gbps performance at the specified reach, use high-quality Cat6a or certified Cat6 cabling, maintain proper cable termination and avoid running cables near strong electromagnetic interference sources. Confirm that the equipment vendor supports 10GBASE-T SFP+ modules in the specific device model and keep device firmware up to date to ensure compatibility and optimal link stability.

## FAQ

### How much does the SFP+ Copper Module CBO 838327-B21-BO 10GBASE-T cost, and is it available for purchase?

The price is 128.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1882 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 23.07.2026 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 BlueOptics 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 BlueOptics 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

https://aio.lv/img/cache/product/4466960/59876140_large.webp