# DAC cable CBO QFX‑QSFP28‑DAC‑50CM passive copper 50 cm

**URL:** https://aio.lv/en/product--blueoptics-qfx-qsfp28-dac-50cm-bl--4466224
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QFX-QSFP28-DAC-50CM-BL
**EAN:** 4063232100661
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.49 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 86.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qfx-qsfp28-dac-50cm-bl--4466224

## 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

Passive copper DAC cable CBO QFX‑QSFP28‑DAC‑50CM, 50 cm length, designed for QSFP28 ports. Provides direct-attach connection between compatible network devices for high-speed short-reach links without optical transceivers. Suitable for data center switches, routers and servers where low-latency, cost-effective short-distance connectivity is required.

## Long description

Passive copper DAC cable CBO QFX‑QSFP28‑DAC‑50CM passive copper 50 cm is a direct-attach copper cable engineered for QSFP28 ports. With a 50 cm length, it offers a compact, low-latency physical link for 100GbE short-reach connections between compatible switches, routers and servers without the need for separate optical transceivers. The cable is intended for data center environments and point-to-point connections where cost-effective, reliable and power-efficient short-distance connectivity is required.
Advantages
This passive DAC cable provides a simple plug-and-play solution for high-speed links using QSFP28 interfaces. It consumes no additional power for signal conversion, reduces component count by eliminating transceivers, and lowers latency compared with optical solutions for very short distances. The fixed 50 cm length helps maintain neat cabling within racks and between adjacent devices while ensuring consistent electrical performance for 100GbE traffic.
Suitable for
Short-reach 100GbE connections between top-of-rack switches
Interconnects between routers and data center servers
Point-to-point links inside server racks or adjacent racks
Environments where low latency and reduced power consumption are priorities
Key specifications
Connector type: QSFP28 to QSFP28 passive copper
Length: 50 cm (fixed)
Data rate: supports 100 Gigabit Ethernet links
Signal medium: passive copper direct-attach
Typical use: short-reach, within-rack or adjacent-rack connections
How to use
Install the cable by inserting each QSFP28 connector securely into the corresponding QSFP28 port on the network devices until the latch engages. Ensure devices are powered down or follow hot-plugging guidelines from the equipment manufacturer if supported. Verify the link status and interface configuration in device management software or CLI; the cable requires no separate configuration but the ports must be set to compatible speed and lane settings. Avoid excessive bending and keep the cable within recommended bend radius to maintain signal integrity.
Usage recommendations
Use this passive copper DAC cable for short, high-speed links up to 50 cm where optical transceivers are unnecessary. Keep the cable away from sources of electromagnetic interference and avoid repeated flexing. Confirm compatibility with device QSFP28 port firmware and vendor compatibility lists when deploying in multi-vendor environments.

## FAQ

### How much does the CBO QFX‑QSFP28‑DAC‑50CM passive DAC cable cost, and is it available for purchase?

The price is 104.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 224 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/4466224/59856172_large.webp