# InfiniBand cable CBO CAB-Q28-Q28-3M-BL QSFP28 to QSFP28, 3 m, blue

**URL:** https://aio.lv/en/product--blueoptics-cab-q28-q28-3m-bl--4470524
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-Q28-Q28-3M-BL
**EAN:** 4063232641508
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 109.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 90.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-q28-q28-3m-bl--4470524

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Direct-attach InfiniBand cable CBO CAB-Q28-Q28-3M-BL with QSFP28 connectors at both ends and a 3-meter length. Designed for high-speed server, switch and storage interconnects using QSFP28 ports, it provides a fixed, low-latency link suitable for data centers and HPC clusters. Passive cable form factor offers easy installation and reliable point-to-point connectivity.

## Long description

Direct-attach InfiniBand cable CAB-Q28-Q28-3M-BL with QSFP28 connectors on both ends and a 3 m length provides a fixed, low-latency connection for server, switch and storage interconnects. The cable is designed for high-speed environments such as data centers and high-performance computing clusters, offering a straightforward point-to-point link that integrates with equipment that supports QSFP28 ports. Its passive construction simplifies installation and eliminates the need for transceivers, while the blue jacket enables easy visual identification within rack cabling.
Advantages
The passive QSFP28-to-QSFP28 design delivers consistent signal integrity and minimal latency for short-reach links. A 3-metre length balances reach and cable management inside racks and between adjacent equipment. The cable’s fixed-configuration lowers component count and reduces potential points of failure compared with transceiver-based links. The colored jacket and standardized QSFP28 terminations support quick identification and compatibility with compatible InfiniBand and Ethernet equipment that accept QSFP28 passive direct-attach cables.
Suitable for
Server-to-switch connections in data centers
Switch-to-switch short-reach aggregation links
Storage system interconnects in rack deployments
High-performance computing (HPC) cluster node links
Top-of-rack (ToR) cabling between adjacent units
Key specifications
Connector type: QSFP28 to QSFP28
Length: 3 metres
Cable type: passive direct-attach copper/fixed assembly
Color: blue jacket for visual identification
Supported interface: InfiniBand and compatible QSFP28 ports; suitable for high-speed short-reach links
Latency: low, suitable for low-latency environments
How to use
Install by seating each QSFP28 connector into the corresponding QSFP28 port on the devices to be interconnected. Ensure that ports are powered down or follow the equipment vendor’s hot-plug guidance when inserting or removing the cable. Route the cable to avoid sharp bends and mechanical strain, and secure it within the rack to maintain airflow. Verify link status and negotiated speed on both endpoints after connection to confirm proper operation.
Usage recommendations
Use this 3 m passive QSFP28 cable for short-reach, high-throughput links inside racks or between adjacent racks. Check device compatibility with passive QSFP28 direct-attach cables and follow vendor guidance on supported cable types and maximum distances for InfiniBand or Ethernet operation.

## FAQ

### How much does the InfiniBand cable CBO CAB-Q28-Q28-3M-BL QSFP28 3 m cost, and is it available for purchase?

The price is 109.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 362 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 13.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can InfiniBand cable CBO CAB-Q28-Q28-3M-BL QSFP28 3 m be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/4470524/59856101_large.webp