# InfiniBand cable CBO 100G-Q28-S28-C-0501-BL 5 m QSFP28 to 4×SFP28

**URL:** https://aio.lv/en/product--blueoptics-100g-q28-s28-c-0501-bl--4472296
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 100G-Q28-S28-C-0501-BL
**EAN:** 4063232642154
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 290.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 240.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-100g-q28-s28-c-0501-bl--4472296

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

Copper InfiniBand active/passive cable by CBO, model 100G-Q28-S28-C-0501-BL, 5 meters long with a QSFP28 connector on one end and four SFP28 connectors on the other. Designed for 100 Gbps links in data centers and high-performance computing, it enables direct connections between QSFP28 and multiple SFP28 ports, simplifying server, switch and storage interconnects.

## Long description

Copper InfiniBand cable by BlueOptics with a QSFP28 connector on one end and four SFP28 connectors on the other. The 5 m active/passive cable is designed for 100 Gbps links in data centers and high-performance computing environments and enables direct connectivity between QSFP28 ports and multiple SFP28 devices without additional transceivers. The cable supports high-throughput, low-latency connections for servers, switches and storage systems and is intended for short-reach, rack-to-rack or within-rack interconnects.
Advantages
The cable delivers a consolidated 100 Gbps link using a single QSFP28 interface split into four SFP28 channels, reducing the need for separate optical transceivers and simplifying cable management. Its copper construction provides power-efficient, low-latency signal transmission suitable for switch-to-server and top-of-rack interconnects. The fixed 5 m length balances flexibility and signal integrity for typical data center rack layouts.
Suitable for (tasks / use cases)
Connecting a QSFP28 port on a switch to multiple SFP28 ports on servers or storage nodes
Short-reach data center interconnects within or between racks
High-performance computing clusters requiring low-latency links
Environments where reducing transceiver count and simplifying cabling is desired
Key specifications
Cable type: Copper InfiniBand active/passive breakout cable
Connectors: QSFP28 (one end) to 4 × SFP28 (other end)
Aggregate data rate: 100 Gbps
Length: 5 metres
Typical application: Short-reach, rack-level interconnects for data centers and HPC
Latency: Low, suitable for latency-sensitive applications
How to use
Insert the QSFP28 connector into the corresponding QSFP28 port on a switch or adapter, and plug each SFP28 connector into the target server or storage port. Ensure connectors are fully seated and that devices support breakout operation from QSFP28 to multiple SFP28 ports. Verify link status and negotiate appropriate link speeds on connected devices. Handle the cable by the connector bodies to avoid stressing the contacts and maintain gentle bend radii during routing to preserve signal integrity.
Usage recommendations
Use the cable for short-reach interconnects inside racks or between adjacent racks; avoid extended runs beyond the specified 5 m. Confirm device compatibility for QSFP28-to-SFP28 breakout functionality and check switch firmware or adapter settings if links do not come up. Store and route the cable to prevent sharp bends and excessive tension, and power down or disable ports before plugging or unplugging to reduce risk of hardware issues.

## FAQ

### How much does the InfiniBand cable CBO 100G-Q28-S28-C-0501-BL 5m cost, and is it available for purchase?

The price is 290.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 06.08.2026 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/4472296/59860110_large.webp