In order to meet the growing demand for high-speed data, many data centers are developing in the direction of high-speed. But in the process of development, cost is undoubtedly one of the most important considerations. 40G DAC high-speed cable is a cost-effective solution. So let's learn about the 40G DAC high-speed cable in detail.

Direct attach cable is a fixed component supporting high-speed data transmission, which uses a small connector module as an optical transceiver on one end of the cable. With the advantages of cost and energy saving, high-speed cable is widely used in the data center of short-distance application. It can connect to switches, servers, routers, network work interface cards (NIC), host bus adapters (HBA) that provide high density and high data throughput.

40G QSFP+ DAC cable

Common types can be divided into 40G QSFP+ to QSFP+ DAC、40G QSFP+ to 4*SFP+ DAC

1. 40G QSFP+ to QSFP+ DAC

Both ends of the 40G QSFP+ to QSFP+ DAC high-speed cable (DAC) are pre terminated with QSFP+ connectors, which are suitable for connecting two 40G network devices, the maximum transmission distance is 7m. The passive cable transmission distance is generally less than 7m, while the active one transmission distance is longer.

Product features:

①Compliance with QSFP MSA

②Compliance with IEEE802.3ba and infiniband QDR standard

③Total bandwidth 40Gb/s

④Working voltage 3.3V, power dissipation <1.5W

⑤Metal shell with EMI immunity

⑥Cable diameter options: 30 AWG ~ 24 AWG

⑦RoHS compliant

Application:

2. 40G QSFP+ to 4xSFP+ DAC

One end of 40G QSFP+ to 4xSFP+ DAC high-speed cable (DAC) is pre terminated with QSFP+ connector, and the other end is pre terminated with four 10G SFP+ connectors, which are used to connect 40G equipment and 10G equipment, suitable for 10G and 40G network connection, with the maximum transmission distance of 7m. The 40G QSFP+ DAC high-speed cable provided by ETU-Link has stable performance and strong compatibility, which can meet the user's demand for 40G network construction.

Product features:

①A-end connector: 1 QSFP 40Gbps connector (in accordance with SFF-8436)

②B-end connector: 4 SFP+ 10Gbps connector (in accordance with SFF-8431)

③Conforming to the SFP+ & QSFP MSA

④Conforming to 10g and 40g Ethernet standards

⑤RoHS compliant

Application:

Direct attach cable can provide high-speed I / O (input and output) data. The most commonly used high-speed cable supports high data rates of 10Gb/s and 40Gb/s. 40G QSFP+ DAC high-speed cable is mostly used for short-distance transmission in data center, which is suitable for short-distance connection, low cost and easy to install and maintain.