# DAC cable CBO CBL-QSFP-40GE-PASS-0.5M 40Gbps QSFP+ passive direct-attach copper, 0.5 m

**URL:** https://aio.lv/en/product--blueoptics-cbl-qsfp-40ge-pass-05m-bl--4470596
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CBL-QSFP-40GE-PASS-0.5M-BL
**EAN:** 4063232009964
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 80.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 66.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cbl-qsfp-40ge-pass-05m-bl--4470596

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

Passive DAC (Direct Attach Copper) cable CBO CBL-QSFP-40GE-PASS-0.5M provides 40Gbps connectivity over a 0.5 m QSFP+ copper link. Designed for short-reach interconnects between switches, routers, and servers, it offers low-latency, low-power direct connection without optical transceivers. Suitable for data center top-of-rack and aggregation fabrics where a compact, cost-effective 40Gbps link is required.

## Long description

The DAC cable CBO CBL-QSFP-40GE-PASS-0.5M is a passive direct-attach copper link that provides 40Gbps connectivity over a 0.5 m QSFP+ cable. It is intended for short-reach interconnects in data center environments, enabling direct electrical connections between QSFP+ ports on switches, routers and servers without the need for separate optical transceivers. The cable supports standard 40 Gigabit Ethernet signaling over a compact, low-profile copper assembly suitable for high-density racks and top-of-rack deployments.
Advantages
This passive DAC cable delivers low latency and low power consumption compared with optical solutions that require transceivers. Its fixed 0.5 m length and QSFP+ connectors offer a reliable, plug-and-play connection that reduces component count and simplifies cabling in short-reach scenarios. The copper construction provides consistent performance for 40Gbps links while lowering acquisition and operational costs in environments where fiber optics are not required.
Suitable for
Top-of-rack switch-to-switch connections in data centers
Server-to-switch interconnects within the same rack or adjacent racks
Aggregation fabrics and short-reach distribution links
Key specifications
Interface: QSFP+ to QSFP+
Data rate: 40 Gbps
Length: 0.5 m (fixed)
Type: Passive direct-attach copper (DAC)
Purpose: Short-reach electrical interconnects for 40 Gigabit Ethernet
How to use
Insert each QSFP+ connector into the corresponding QSFP+ port on network equipment until the latch engages, ensuring correct orientation. Verify link status on the connected devices and ensure ports are configured for 40Gbps operation if required by the equipment. For safe handling, avoid bending the cable sharply at the connector heads and do not exceed the recommended minimum bend radius.
Usage recommendations
Use this passive 0.5 m QSFP+ DAC for short-distance connections inside racks or between adjacent racks where 40Gbps bandwidth is needed and optical transceivers are unnecessary. Ensure compatibility with host devices' QSFP+ ports and verify required port settings in the network equipment documentation before installation.

## FAQ

### How much does the CBO CBL-QSFP-40GE-PASS-0.5M 40Gbps DAC cable cost, and is it available for purchase?

The price is 80.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 118 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 30.07.2026 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/4470596/59853445_large.webp