# CBO Direct Attach Copper (DAC) Cable QSFP28-DAC-2M 2 m Compatible with Chelsio

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-ch-bl--4466806
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-CH-BL
**EAN:** 4063232101408
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 102.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-ch-bl--4466806

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-DAC-2M is a 2‑meter Direct Attach Copper (DAC) cable compatible with Chelsio QSFP28 ports. Designed for short-range 100GbE connections, it provides a fixed, low-latency link between switches, servers or NICs with QSFP28 interfaces. The passive copper assembly offers plug-and-play installation, reliable signal quality for data center top-of-rack and high-performance networking use cases.

## Long description

The CBO Direct Attach Copper (DAC) Cable QSFP28-DAC-2M is a 2‑meter passive copper cable designed for short-range 100GbE connections between devices with QSFP28 ports, compatible with Chelsio equipment. It delivers a fixed, low-latency link suitable for top-of-rack switches, servers and network interface cards where reliable, high-throughput connectivity is required. The plug-and-play form factor eliminates the need for transceivers and simplifies installation in dense rack environments.
Advantages
The QSFP28-DAC-2M provides low latency and consistent signal quality for short-distance 100GbE links. Its passive copper construction offers power-efficient operation compared with active optical solutions for similar short ranges. The cable’s QSFP28 connectors ensure straightforward interoperability with compliant QSFP28 ports and reduce inventory complexity by avoiding separate transceivers. Its 2 m length is optimized for connections within racks and between adjacent racks in data center deployments.
Suitable for
 Top-of-rack switch to server 100GbE links
 Inter-switch connections within the same rack or adjacent racks
 Direct connections to QSFP28-capable NICs and network adapters
 High-performance computing (HPC) clusters requiring low-latency links
Key specifications
 Connector type: QSFP28 to QSFP28
 Length: 2 meters
 Media: Passive copper twinaxial
 Bandwidth: 100 Gbps (aggregate)
 Typical use case: Short-range, rack-level 100GbE connections
 Compatibility note: Designed for interoperability with Chelsio QSFP28 ports
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on the devices to be connected until the connector latches. Ensure ports are powered down or follow your equipment vendor’s hot-plug guidance if available; most systems support hot-insertion of DAC assemblies. Verify link status and interface configuration in the device management interface; standard Ethernet configuration and driver support apply. For best performance, maintain a clean routing path inside the rack and avoid excessive bending or strain on the cable assemblies.
Usage recommendations
Use this 2 m QSFP28 DAC for short, direct 100GbE links inside racks or between adjacent racks. Avoid extended runs beyond the specified length and minimize tight bends; store and route the cable to prevent damage to the connector latches or cable shielding. Confirm firmware and driver compatibility on Chelsio or other vendor equipment to ensure proper link negotiation.

## FAQ

### How much does the CBO QSFP28-DAC-2M DAC Cable 2 m cost, and is it available for purchase?

The price is 124.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 269 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 10.08.2026 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/4466806/59858110_large.webp