# HPE 100Gb QSFP28 to 4x25Gb SFP28 3m Direct Attach Copper Cable

**URL:** https://aio.lv/en/product--hp-845416-b21--12498510
**Data updated:** 2026-06-05 01:32 (EEST)
**Category:** Network Cables
**Manufacturer:** HP
**Manufacturer code:** 845416-B21
**EAN:** 4514953987388
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 782.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 646.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-845416-b21--12498510

## 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 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The HPE 100Gb QSFP28 to 4x25Gb SFP28 3m Direct Attach Copper (DAC) cable is a high-performance interconnect solution designed for data center networking. Featuring a 3-meter length, this cable provides reliable connectivity between QSFP28 and SFP28 ports, enabling efficient 100Gb to 4x25Gb breakout configurations. It is ideal for high-speed server-to-switch links, ensuring low latency and optimal signal integrity in enterprise IT environments.

## Long description

The HPE 100Gb QSFP28 to 4x25Gb SFP28 3m Direct Attach Copper (DAC) cable is a high-performance networking solution engineered for seamless connectivity in modern data centers. This breakout cable allows for the transition from a 100Gb QSFP28 port to four individual 25Gb SFP28 ports, facilitating efficient high-speed data transmission across server and switch infrastructure. With a length of 3 meters, it offers the necessary reach for rack-level interconnections while maintaining signal integrity and low latency performance required for demanding enterprise IT environments.
Advantages
This direct attach copper cable provides a cost-effective and energy-efficient alternative to optical transceivers for short-reach applications. By utilizing a passive copper design, it eliminates the need for additional power consumption at the connection point, which helps in reducing overall data center operational costs. The cable is built to ensure reliable data throughput and minimal signal degradation, making it a dependable choice for high-density networking setups where consistent performance is critical for maintaining uptime and network stability.
Suitable for
High-speed server-to-switch connectivity
Data center rack-to-rack networking
High-density breakout configurations
Enterprise cloud service infrastructure
This cable may not be suitable for long-distance networking requirements, as its passive copper design is optimized for short-reach connections within a single rack or adjacent racks. It is also not compatible with equipment that does not support the QSFP28 or SFP28 interface standards.
Key specifications
Cable length: 3 meters
Connector 1: QSFP28
Connector 2: 4x SFP28
Data transfer rate: 100 Gbit/s
Cable type: Direct Attach Copper (DAC)
How to use
To install the cable, ensure that both the QSFP28 port on your switch or server and the four SFP28 ports on the target devices are powered off or configured for the breakout mode. Insert the QSFP28 connector into the primary port until it clicks into place, then connect each of the four SFP28 ends into the corresponding network interface cards or switch ports. Once connected, power on the equipment and verify the link status through your network management software to ensure proper data transmission.
What to consider before purchase
Verify that your hardware supports 100Gb to 4x25Gb breakout functionality
Ensure the 3-meter length is sufficient for your specific rack layout
Check compatibility with your existing HPE networking equipment
Usage recommendations: Always handle the cable with care to avoid sharp bends or physical damage to the copper conductors. Ensure that the cable is properly routed through cable management systems to prevent strain on the connectors and to maintain optimal airflow within the server rack.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |
| Bending radius | 45 mm |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Connector 1 | QSFP28 |
| Connector 2 | 4x SFP28 |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

### Other features

| Feature | Value |
|---|---|
| Cable diameter | 3 mm |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 85447000 |

## FAQ

### How much does the HPE 100Gb QSFP28 to 4x25Gb SFP28 3m Cable \| 845416-B21 cost, and is it available for purchase?

The price is 782.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can HPE 100Gb QSFP28 to 4x25Gb SFP28 3m Cable \| 845416-B21 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 HP 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 HP 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: cable length, connector 1, connector 2, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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