# BlueOptics AT-QSFP28-1CU-BL InfiniBand/fibre optic cable 1 m QSFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-at-qsfp28-1cu-bl--4465079
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** AT-QSFP28-1CU-BL
**EAN:** 4063232145105
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 86.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-at-qsfp28-1cu-bl--4465079

## 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

The BlueOptics AT-QSFP28-1CU-BL is a 1 m InfiniBand/fibre optic cable featuring QSFP28 Male/Male connectors. It is designed for high-speed data transmission in data centers and networking applications, ensuring reliable connectivity and performance.

## Long description

The BlueOptics AT-QSFP28-1CU-BL is a 1 m InfiniBand/fibre optic cable with QSFP28 Male to QSFP28 Male connectors designed for high-speed data transmission in data centres and networking environments. The cable is intended for short-range direct attach links and supports 100G data rates over a 1 metre passive twinax copper configuration, offering reliable electrical signal transfer between compatible QSFP28 ports.
Advantages
This QSFP28 Male/Male direct attach cable provides a compact, low-latency connection for rack-to-rack and intra-rack links. As a passive 100G twinax solution, it consumes minimal power and has a straightforward design that reduces failure points. The cable is manufactured to established MSA-compatible dimensions and uses high-quality components to ensure consistent performance and a long operational lifetime.
Suitable for
Short-range 100G connections between switches and routers in data centre racks
High-speed links for storage systems and server interconnects
InfiniBand and Ethernet fabrics requiring QSFP28 interfaces
Applications where low latency and low power consumption are important
Key specifications
Connector type: QSFP28 Male to QSFP28 Male
Length: 1 metre
Data rate: up to 100 Gbit/s over 1 m (100GBase-CR4 compatible)
Cable type: passive twinax copper (30 AWG typical for this class)
Applications supported: Ethernet, InfiniBand, FCoE, and Fibre Channel at compatible rates
How to use
Install the cable by seating each QSFP28 connector into the corresponding QSFP28 port until the latch engages. Use the cable for direct attach connections between compatible QSFP28 ports on switches, routers, storage systems or servers. Verify that the connected hardware supports passive QSFP28 direct attach twinax cables and the required 100GBase-CR4 or equivalent transmission protocol. Monitor link status and performance through the host devices after installation.
Usage recommendations
For reliable operation, route the cable to avoid sharp bends and mechanical stress, keep the length to the intended short-reach use (1 m) and ensure both endpoints officially support passive QSFP28 DACs. If device firmware or vendor compatibility lists are available, confirm support for 100GBase-CR4 or equivalent prior to deployment.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Cable length | 1 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand cable BlueOptics AT-QSFP28-1CU-BL 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 — 246 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/4465079/64290276_large.webp