# InfiniBand/fibre optic cable BlueOptics ET7302-DAC-50CM-BL 0.5 m SFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-et7302-dac-50cm-bl--5039571
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** ET7302-DAC-50CM-BL
**EAN:** 4063232261515
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 54.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-et7302-dac-50cm-bl--5039571

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics ET7302-DAC-50CM-BL is a 0.5 m InfiniBand/fibre optic cable featuring SFP28 Male/Male connectors. It provides high-speed data transmission and is ideal for connecting devices in data centers or high-performance computing environments.

## Long description

The BlueOptics ET7302-DAC-50CM-BL is a 0.5 m InfiniBand/fibre optic direct attach cable with SFP28 male-to-male connectors designed for short-reach, high-speed connections in data centers and high-performance computing environments. This passive twinax copper cable conforms to 25GBase-CR signaling and the SFP28 MSA for reliable 25 Gbit/s links over 0.5 m. The cable is intended for direct, low-latency electrical signal transfer between compatible SFP28 ports on switches, routers, storage systems and servers.
Advantages
The cable delivers up to 25 Gbit/s data rates with low power consumption and low latency thanks to its passive twinax design. Compliance with SFP28 and MSA guidelines ensures predictable interoperability with hardware platforms that support 25GBase-CR SFP28 direct attach cables. The 0.5 m length is suitable for rack-to-rack or in-rack connections, reducing clutter while providing a compact, robust physical interface. High-quality components and industry-standard manufacturing practices contribute to long service life and high availability.
Suitable for
 Short-reach links between SFP28 ports in racks and adjacent racks
 25G Ethernet, FCoE and InfiniBand applications requiring 25 Gbit/s over short distances
 Connections between switches, routers, storage arrays and servers with SFP28 support
Key specifications
 Length: 0.5 m
 Connector type: SFP28 male to SFP28 male
 Data rate: up to 25 Gbit/s
 Cable type: passive twinax copper (30 AWG)
 Compliant with 25GBase-CR signaling and SFP28 MSA
 Typical applications: Ethernet, FCoE, Fibre Channel, InfiniBand (short reach)
How to use
Install the cable by seating each SFP28 connector into the corresponding SFP28 port on the network devices until the latch engages. Ensure devices are powered and configured to support passive DAC twinax cables and 25GBase-CR operation. Verify link status and negotiate speed on both endpoints. Avoid sharp bends and tensile stress on the cable; maintain recommended bend radius to preserve signal integrity. If a device does not recognize the cable, check port compatibility and firmware or software settings that may restrict third-party DAC modules.
Usage recommendations
Use this 0.5 m BlueOptics direct attach cable for short, fixed connections inside racks or between adjacent racks where low latency and low power consumption are priorities. Confirm that your hardware supports passive SFP28 DACs at 25G and, when possible, test one unit in your environment to ensure full compatibility with your specific switches or storage systems.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.08 kg |
| Package weight | 90 g |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 0.5 m |
| Data transfer rate | 25 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | SFP28 |
| Connector 2 | SFP28 |
| AWG wire size | 30 |
| Warranty period | 5 year(s) |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics ET7302-DAC-50CM-BL cost, and is it available for purchase?

The price is 66.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 417 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 23.07.2026 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/5039571/64341513_large.webp