# DAC cable CBO QSFP28 3m for Dell Networking (470-ABQB-BL) direct-attach copper

**URL:** https://aio.lv/en/product--blueoptics-470-abqb-bl--4472382
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 470-ABQB-BL
**EAN:** 4063232008127
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-470-abqb-bl--4472382

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Direct Attach Copper (DAC) cable by CBO, QSFP28 interface, 3 meters long, compatible with Dell Networking (MPN 470-ABQB-BL). Designed for short-range, high-speed connections between QSFP28 ports in switches and servers. Provides a reliable, low-latency physical link for 100GbE or other QSFP28-compatible applications, simplifying rack-to-rack or intra-rack cabling.

## Long description

CBO QSFP28 Direct Attach Copper (DAC) cable, 3 m, is a factory-terminated copper interconnect designed for short-reach, high-bandwidth links between QSFP28 ports in network switches and servers. The cable supports 100GbE and other QSFP28-compatible applications, offering a low-latency, energy-efficient physical connection appropriate for intra-rack and rack-to-rack deployments where fiber transceivers are not required. The assembly provides a straightforward solution for dense data center topologies and hyperscale environments that require predictable electrical performance over a 3 meter channel.
Advantages
The DAC cable delivers predictable signal integrity and low latency due to its direct-attach copper construction and QSFP28 connectivity. It eliminates the need for separate optical transceivers and fiber patching for short distances, reducing component count and simplifying installation and inventory management. The pre-terminated design ensures consistent electrical characteristics and saves time during deployment while maintaining compatibility with QSFP28 ports that accept copper direct-attach assemblies.
Suitable for
 Short-reach 100GbE links between switches and servers within the same rack
 Top-of-rack to aggregation switch connections in data centers
 High-density patching in switch-to-switch or server-to-switch configurations
 Environments where cost-effective, low-power connectivity is required
Key specifications
 Interface: QSFP28 electrical direct-attach copper
 Length: 3 meters
 Data rate: supports up to 100 Gigabit Ethernet per QSFP28 standards
 Connector style: QSFP28 plug on both ends for direct port mating
 Cable type: twinax copper assembly optimized for short-range high-speed links
 Latency: minimal propagation delay typical of copper direct-attach assemblies
How to use
Insert each QSFP28 connector into the corresponding QSFP28 ports on the network devices until the latch engages. Ensure devices are powered down or follow hot-plug guidelines from the device manufacturer if live insertion is permitted. Verify link status through the switch or server management interface and confirm the negotiated speed (for example, 100GbE) in the device port configuration. Route the cable to avoid tight bends and physical strain; maintain recommended bend radius and secure the cable to prevent movement that could affect connections.
Usage recommendations
Use this 3 m DAC cable for short-range connections where QSFP28 copper interconnects are supported by both devices. Avoid exceeding the recommended bend radius, keep the cable away from sources of electromagnetic interference, and confirm compatibility with the specific QSFP28 ports on your network equipment prior to deployment.

## FAQ

### How much does the CBO QSFP28 DAC cable 3m for Dell Networking cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 03.08.2026 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/4472382/59855947_large.webp