# CBO DAC cable X2121A-2M-N-BL QSFP direct attach, 30 m, BlueLAN

**URL:** https://aio.lv/en/product--blueoptics-x2121a-2m-n-bl--4471813
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** X2121A-2M-N-BL
**EAN:** 4063232060057
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 88.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 73.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-x2121a-2m-n-bl--4471813

## 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

Shielded direct-attach copper (DAC) cable from CBO, model X2121A-2M-N-BL, 30 meters, designed for QSFP ports. BlueLAN cable provides a fixed, low-latency connection between compatible network devices in data centers or server rooms. Suitable for high-throughput short-range links where QSFP direct-attach cabling is supported; offers reliable physical connectivity and easy installation.

## Long description

The CBO DAC cable X2121A-2M-N-BL QSFP direct attach, 30 m, BlueLAN is a shielded direct-attach copper (DAC) cable designed for QSFP ports. It provides a fixed, low-latency physical connection between compatible network devices in data centers and server rooms. The 30-meter length supports short-range links where QSFP direct-attach cabling is supported and simplifies rack-to-rack or switch-to-switch cabling by offering a single, shielded copper assembly that requires no separate transceivers.
Advantages
This shielded DAC cable delivers consistent signal integrity and reduced electromagnetic interference thanks to its shielding, making it suitable for dense installations. The cable offers low latency and predictable performance compared to optical transceivers with external modules, and it reduces power consumption by removing the need for separate optical transceivers. Its pre-terminated design ensures straightforward installation and reliable mechanical connection between QSFP ports.
Suitable for
 High-throughput short-range links between switches and routers in data centers
 Direct connections between servers and top-of-rack or spine switches
 Environments requiring low-latency, deterministic cabling
 Racks and equipment layouts where shielded copper cabling prevents EMI issues
Key specifications
 Connector type: QSFP direct-attach copper
 Cable length: 30 m
 Construction: Shielded copper assembly for reduced interference
 Latency: Low, fixed-link characteristics suitable for high-throughput applications
 Compatibility: Designed for devices with QSFP ports supporting direct-attach copper cabling
How to use
Install the cable by inserting each QSFP connector into the corresponding QSFP port on the network devices until the latch engages. Ensure both ends are fully seated and the cable is routed to avoid sharp bends and mechanical strain. Confirm the connected devices recognize the link and verify link status through device management interfaces or LEDs. For optimal performance, keep the cable away from high-power electrical sources when possible and follow the host equipment guidelines for QSFP direct-attach connections.
Usage recommendations
Use the shielded DAC cable for short-range, high-bandwidth links where QSFP direct-attach cabling is supported. Maintain proper bend radius, provide strain relief at patch points, and avoid exposing connectors to dust or contaminants when not in use.

## FAQ

### How much does the CBO QSFP DAC cable X2121A-2M-N-BL 30 m cost, and is it available for purchase?

The price is 88.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 182 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/4471813/59857462_large.webp