This 40G QSFP+ cable delivers what you need most in your network connections: reliable performance. It’s built to MSA specifications and fully tested to ensure seamless compatibility.

The active twinaxial cable is a fully hot-pluggable solution, supporting 40 Gigabit Ethernet applications connected through QSFP+ (Quad Small Form-Factor Pluggable) ports.

Designed for high-speed interconnects, this cable is intended for medium-distance applications such as across rack network switch or server connections.

Backed by a StarTech.com lifetime warranty, the QSFPH40GAC10 is a reliable replacement cable for the Cisco® QSFP-H40G-ACU10M.

• 100% compatibility with Cisco QSFP-H40G-ACU10M guaranteed
• StarTech.com SFP cables are backed by a lifetime warranty
• Uses a cost-effective cabling alternative to fiber-optic setups
• Complies with Multi-Source Agreement (MSA) industry standards
• Low power consumption of less than 0.5 W
• Hot-swappable

• Use in 40Gb Ethernet network applications
• Point-to-point across-rack server or network switch connections

This 40G QSFP+ cable delivers what you need most in your network connections: reliable performance. It’s fully tested to ensure seamless compatibility.
The active twinaxial cable is a fully hot-pluggable solution, supporting 40 Gigabit Ethernet applications connected through QSFP+ (Quad Small Form-Factor Pluggable) ports.
Designed for high-speed interconnects, this cable is intended for medium-distance applications such as across rack network switch or server connections.
Backed by a lifetime warranty, the QSFPH40GAC10 is a reliable replacement cable for the Cisco® QSFP-H40G-ACU10M.

• QSFP+ cable

What is a SFP Transceiver?
The SFP also known as ’small form-factor pluggable’ is a compact hot-swappable device that plugs into a SFP port of a network device or switch and is most commonly used for telecommunication and data communication applications. SFPs support communication using either fibre optic or copper networking cable. SFP optics have a transmitting side (Tx) and a receiving side (Rx). The transceiver communicates using a laser to the receiving side of the other optic network device. SFPs are built to support many different communication standards such as Gigabit Ethernet, Fibre Channel and SONET.

What is the difference between SFP & SFP+ transceivers?
SFP and SFP+ transceivers are very similar in terms of size and appearance. Primarily the key difference being that SFP+ is commonly used in Gigabit Ethernet applications while SFP is for 100Bse or 1000Base applications and SFP maximum data rate is limited to 10Gbps whereas SFP= transceivers support higher but also accounts for a difference in transmission distances. It’s important to note that a SFP+ transceiver cannot be plugged into an SFP port as SFP+ do not support speeds less than 1Gbps.

What is QSFP Transceiver?
QSFP also known as Quad small factor pluggable is a 4 channel type of compact hot swappable transceiver and is used for 40 Gigabit ethernet data communication applications. These devices support Ethernet, Fibre Channel, InfiniBand and SONET/SDH standards with different data rate options. The most common types include: 4x1Gbps QSFP, 4x10Gbps QSFP+, 4x28Gbps QSFP28.
QSFP+ and QSFP28 are the latest versions and support numerous 40Gbps and 100Gbps applications. Both QSFP+ and QSFP28 modules integrate 4 transmit and 4 receiver channels.