QSFP+ vs. QSFP28: Understanding the Critical Differences

This is a very common application called a "breakout" or "fan-out," and it is one of the great strengths of the QSFP connector architecture. To achieve this, you need a specific type of cable called a breakout cable. KinKuo can supply a high-quality breakout cable that has a single QSFP28 connector on one end (to plug into your 100G switch port) and four separate SFP28 connectors on the other end. The switch port is configured to operate in breakout mode, and it will treat the single QSFP28 port as four independent 25G interfaces. This is a highly efficient and cost-effective way to connect a high-speed switch to multiple servers. KinKuo can provide the high-quality, fully tested breakout cables you need to reliably implement this architecture.

When you are manufacturing networking equipment at scale, you need a supply chain partner who can guarantee quality, consistency, and stable supply. The best strategy is to partner directly with a factory-authorized agent with a long history of reliability. KinKuo is an ideal partner for high-volume OEM production. As an authorized Amphenol agent, we provide a secure, factory-direct supply of the QSFP connector. Our 15 years of experience and our ISO 9001 certified processes ensure unwavering quality and consistency. We can work with your procurement team on forecasting and inventory management to ensure a predictable and reliable supply that will keep your production line moving. For a stable, cost-effective, and high-quality source for the QSFP connector, KinKuo is the proven choice.

We understand that speed is critical during the New Product Introduction (NPI) phase. Long lead times for key components like the QSFP connector can derail a project schedule. To solve this, KinKuo maintains a strategic inventory of the most common QSFP connector and cage assembly configurations. This NPI-focused stock is specifically designed to support engineering teams during their initial prototype and validation builds. By contacting us with your requirements, we can often ship genuine, high-quality Amphenol components directly from our warehouse, cutting the lead time from months to just days. This rapid access to hardware allows you to accelerate your development cycle and get your innovative product to market faster.

This is a great technical question. The "QSFP" part of the name refers to the Quad Small Form-factor Pluggable standard. The "28" in QSFP28 refers to the nominal maximum data rate of each of the four lanes in the QSFP connector. Each lane is specified to run at up to 28 gigabits per second (Gbps). The common application is 100G Ethernet, which uses a signaling rate of 25.78125 Gbps per lane. The connector is specified for up to 28 Gbps to provide enough performance margin to handle this encoding and ensure signal integrity. As an expert supplier, KinKuo can help you and your team understand these technical nuances, ensuring you choose the right components for your application.