# DAC cable CBO DAC-QSFP-40G-2M-BL — 2 m QSFP+ direct-attach copper, 40 Gbit/s

**URL:** https://aio.lv/en/product--blueoptics-dac-qsfp-40g-2m-bl--4465127
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** DAC-QSFP-40G-2M-BL
**EAN:** 4063232011905
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 88.49 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 73.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-dac-qsfp-40g-2m-bl--4465127

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.89 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

Direct-attach copper (DAC) cable CBO DAC-QSFP-40G-2M-BL is a 2 m QSFP+ passive cable supporting 40 Gbit/s links. Designed for short-reach connections between switches, routers or network interface cards, it provides low-latency, high-throughput connectivity without transceivers. Suitable for data center top-of-rack and server-to-switch links where a cost-effective, reliable 40 Gb/s connection is required.

## Long description

Direct-attach copper (DAC) cable CBO DAC-QSFP-40G-2M-BL is a 2 m QSFP+ passive cable engineered for short-reach 40 Gbit/s links. It connects QSFP+ ports directly without optical transceivers, delivering high throughput and low latency for rack-level and server-to-switch topologies. The cable is intended for data centre environments where predictable performance, low power consumption and straightforward deployment are priorities.
Advantages
The QSFP+ passive DAC provides a cost-effective alternative to optical modules by eliminating the need for separate transceivers. With a fixed 2 m length and QSFP+ terminations it ensures stable 40 Gbit/s connectivity and minimal signal conversion overhead. Built for short-distance links, the cable reduces power draw compared with active optical solutions and simplifies inventory management by using a standard copper assembly.
Suitable for
Top-of-rack switch to switch connections
Server to switch uplinks within the same rack or adjacent racks
High-throughput, low-latency data centre links
Temporary deployment or testbench connections in networking labs
Key specifications
Connector type: QSFP+ to QSFP+
Data rate: 40 Gbit/s aggregate throughput
Length: 2 metres
Cable type: Direct-attach copper (passive)
Intended reach: short-reach, rack-level interconnects
Power: passive design, no external power required
How to use
Install the DAC cable by seating each QSFP+ connector into the corresponding QSFP+ port until the latch engages. Ensure both network devices are powered down or interfaces are administratively disabled during installation if required by your change control procedures. After physical installation, verify link status on both endpoints and confirm 40 Gbit/s negotiation and proper lane mapping in device interfaces.
Usage recommendations
Use this passive QSFP+ DAC for short, fixed-length connections within racks or between adjacent racks. Avoid tight bends and sharp kinks; maintain the manufacturer-recommended bend radius. For longer runs or where optical isolation is required, consider active optical cables or transceiver-based solutions.

## FAQ

### How much does the CBO DAC-QSFP-40G-2M-BL 2 m QSFP+ 40 Gbit/s cable 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 04.08.2026 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/4465127/59877086_large.webp