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header-product DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL 3m QSFP28 to 4xSFP28
192.99 €

DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL 3m QSFP28 to 4xSFP28

DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL Photo 1
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DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL 3m QSFP28 to 4xSFP28

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DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL 3m QSFP28 to 4xSFP28

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Short description

The BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL is a 3-meter DAC cable featuring a QSFP28 connector on one end and four SFP28 connectors on the other. It is designed for high-speed data transmission in data centers and networking applications, providing reliable performance and efficient connectivity.
Available for order: 29 pcs.
Warranty: 2 Years
SKU: 8420802
Manufacturer: BlueOptics
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
27.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
01.09.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
01.09.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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Product information

Description

The BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL is a 3 m direct attach copper (DAC) cable with a QSFP28 connector on one end and four SFP28 connectors on the other. Designed for short-reach, high-speed links in racks and between adjacent racks, this passive twinax cable supports aggregated 100GBase-CR4 and 4x25GBase-CR electrical transmission over a 3 meter distance. Manufactured to MSA guidelines and intended for use in hardware platforms that support QSFP28-to-4xSFP28 DACs, it provides a straightforward, low-latency connection option for switches, routers and storage systems requiring up to 100 Gbit/s aggregated throughput.

Advantages

This 3 m DAC cable delivers reliable short-distance connectivity with low power consumption and minimal latency because it uses a passive twinax copper design. Compliance with MSA form factors and use of established component suppliers ensure compatibility with major networking hardware that supports QSFP28 and SFP28 interfaces. The compact, fixed-length cable simplifies installation in dense rack environments and reduces the need for external transceivers, lowering both purchase and operating costs.

Suitable for

  • High-density rack-to-rack links and intra-rack connections
  • Aggregated 100GBase-CR4 or 4x25GBase-CR short-reach links
  • Switch-to-switch, switch-to-router or switch-to-storage system connections
  • Data center top-of-rack and spine-leaf architectures requiring low latency

Key specifications

  • Cable length: 3 m
  • Connector type (end 1): QSFP28
  • Connector type (end 2): 4 × SFP28
  • Cable type: Passive twinax copper (DAC)
  • Transmission: up to aggregated 100 Gbit/s (100GBase-CR4 / 4 × 25GBase-CR)
  • Conductor gauge: 26 AWG
  • Product colour: Black and Silver
  • Weight: 0.25 kg

How to use

Install the DAC by firmly inserting the QSFP28 connector into the QSFP28 port on the source device and inserting each SFP28 connector into the corresponding SFP28 ports on the destination device(s). Ensure both devices officially support passive QSFP28-to-4xSFP28 DAC connections and the chosen transmission modes (100GBase-CR4 or 4x25GBase-CR). Route the cable to avoid tight bends, excessive strain or pinch points and secure it within the rack to maintain proper airflow and cable management. No external power or configuration of the cable itself is required; the connected hardware negotiates link parameters according to supported standards.

Usage recommendations

For reliable operation, verify hardware compatibility with QSFP28-to-4xSFP28 passive DACs before deployment, keep the cable length within the specified 3 m for guaranteed signal performance, and avoid repeated flexing near the connector boots. Use in environments with appropriate ventilation and within the equipment manufacturer's recommended temperature range to maximize service life.

Specifications

Connector 2: This is the second connector in the device.
4xSFP28
Connector 1: This is the first connector in the device.
QSFP28
Cable length: How long the cable is.
3 m
All features
Data transfer rate: Rate at which data can be transferred. Usually expressed in units per second. May vary with network configurations.
100 Gbit/s

Logistics data

Warranty period:
5 year(s)

Packaging data

Package weight: Weight of the packaged product.
260 g

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.25 kg

Operational conditions

Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 70

Features

AWG wire size:
26
Connector 2: This is the second connector in the device.
4xSFP28
Connector 1: This is the first connector in the device.
QSFP28
Product colour: The colour e.g. red, blue, green, black, white.
Black, Silver
Cable length: How long the cable is.
3 m

Description

Machine translation. Load original

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Customer reviews

Customer questions

FAQ

How much does the DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 27.08.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 2, connector 1, cable length, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.