# CBO DAC Cable QSFP28 Compatible CAB-Q28-Q28-50CM-BL 50 cm Direct Attach Copper

**URL:** https://aio.lv/en/product--blueoptics-cab-q28-q28-50cm-bl--4470525
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-Q28-Q28-50CM-BL
**EAN:** 4063232100425
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-q28-q28-50cm-bl--4470525

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

CBO DAC Cable CAB-Q28-Q28-50CM-BL is a 50 cm direct attach copper (DAC) cable compatible with QSFP28 ports. Designed for short-range high-speed connections, it provides a cost-effective link between QSFP28-enabled devices such as switches, routers and servers. The passive copper construction offers low latency and reliable data transfer for 100GbE or other QSFP28 applications in data centers and rack-to-rack connections.

## Long description

CBO DAC Cable QSFP28 Compatible CAB-Q28-Q28-50CM-BL is a 50 cm direct attach copper (DAC) cable engineered for short-range, high-bandwidth interconnects between QSFP28-equipped devices. The passive copper assembly connects QSFP28 ports on switches, routers and servers to provide a low-latency physical link suitable for 100 Gigabit Ethernet and other QSFP28 applications in data center and rack-to-rack environments.
Advantages
The cable offers a simple, plug-and-play solution with low insertion loss and predictable electrical performance over the specified 50 cm reach. Passive construction eliminates the need for separate transceivers, reducing total hardware cost and simplifying inventory. Its QSFP28-compatible connectors are designed for secure mating and consistent signal integrity in dense networking racks.
Suitable for
Short-distance 100GbE connections between servers and switches
High-density rack-to-rack links in data centers
Connecting QSFP28 ports for low-latency applications such as storage networks and virtualization hosts
Temporary or permanent cabling in lab and test environments
Key specifications
Form factor: QSFP28 to QSFP28 direct attach copper cable
Length: 50 cm
Cable type: Passive copper twinax assembly
Data rate support: Suitable for 100 Gigabit Ethernet and other QSFP28-compatible protocols
Connector compatibility: QSFP28 ports on networking equipment
Application environment: Short-reach data center and rack-to-rack connections
How to use
Install the cable by aligning each QSFP28 plug with the corresponding port and inserting until the connector latches. No additional transceivers or configuration are required for most systems; the host devices should recognize the direct attach connection automatically. Ensure both ends are fully seated and that the cable routing avoids sharp bends or crushing to maintain signal integrity. For removal, depress the latch on the module and withdraw the connector evenly.
Usage recommendations
Verify QSFP28 port compatibility and firmware support on both devices before deployment. Use the 50 cm length for short interconnections within the same rack or adjacent racks to maintain specified signal performance. Avoid excessive bending radius and mechanical stress on the cable; maintain a clean environment to prevent dust accumulation on connector interfaces.

## FAQ

### How much does the CBO DAC Cable QSFP28 CAB-Q28-Q28-50CM-BL cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 228 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 27.07.2026 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/4470525/59855110_large.webp