# DAC Cable BlueOptics CAB-Q-Q-100G-3M-BL QSFP28 3m

**URL:** https://aio.lv/en/product--blueoptics-cab-q-q-100g-3m-bl--4470511
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-Q-Q-100G-3M-BL
**EAN:** 4063232642543
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-q-q-100g-3m-bl--4470511

## 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

The BlueOptics CAB-Q-Q-100G-3M-BL is a 3-meter DAC cable designed for high-speed data transmission. It features QSFP28 connectors on both ends, ensuring compatibility with various networking equipment. Ideal for data centers and high-performance computing environments, this cable provides reliable connectivity with minimal latency.

## Long description

The BlueOptics CAB-Q-Q-100G-3M-BL is a 3-meter passive Direct Attach Cable (DAC) with QSFP28 connectors on both ends. Designed for short-distance, high-speed data transmission, this 100GBase-CR4 twinax copper cable uses 26 AWG conductors and follows MSA-compliant QSFP28 specifications to ensure electrical and mechanical interoperability with compatible network equipment. The cable is intended for rack-to-rack and intra-rack connections in data centers and high-performance computing environments where low latency and reliable 100 Gbps links are required.
Advantages
This QSFP28 DAC offers low latency and low power consumption typical of passive twinax copper solutions. MSA compliance and QSFP28 connectors provide broad compatibility with hardware that supports 100GBase-CR4 over passive DACs. The 3 m length is suitable for connecting devices within or between adjacent racks while minimizing signal loss. The cable is produced to use quality components and meets common industry requirements for short-reach copper interconnects.
Suitable for
 Rack-to-rack connections in data centers
 Intra-rack links between switches, routers and storage systems
 High-performance computing cluster interconnects
 Environments requiring low-latency 100 Gbps links
Key specifications
 Connector type: QSFP28 to QSFP28
 Nominal data rate: up to 100 Gbps (100GBase-CR4)
 Length: 3 meters
 Cable type: passive twinax copper (DAC)
 Conductor gauge: 26 AWG
 MSA-compliant QSFP28 interface
 Low power passive design
How to use
Install the BlueOptics CAB-Q-Q-100G-3M-BL by inserting each QSFP28 connector into the corresponding QSFP28 port on your network devices until the connector latches. Ensure both devices support passive DACs and the 100GBase-CR4 electrical interface. Route the cable to avoid sharp bends and mechanical strain; maintain recommended bend radius for twinax cable and secure the cable to rack structures where appropriate. When removing the cable, release the latch per the device instructions before pulling the connector straight out to avoid damage.
Usage recommendations
Verify device compatibility with QSFP28 passive DACs and the 100GBase-CR4 protocol before deployment. Use the 3 m length for short-reach connections inside or between adjacent racks; for longer distances consider active DACs or optical transceivers. Regularly inspect connectors and cable jacket for damage and ensure cable routing prevents excessive bending or compression to preserve signal integrity.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 3 m |
| Cable type | DAC |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| InfiniBand protocol | Yes |

## FAQ

### How much does the DAC Cable BlueOptics CAB-Q-Q-100G-3M-BL cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 337 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/4470511/64300237_large.webp