The HT-400G-QDD-XXXC is an Eight-Channel, Pluggable, Parallel, Fiber-Optic QSFP Double Density for 2x200 Gigabit Ethernet Applications. This AOC is a high performance module for short-range multi-lane data communication and interconnect applications. It integrates eight data lanes in each direction with 8x26.5625GBd. Each lane can operate at 53.125Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber with FEC. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 76 contact edge type connector. 

Technical specifications

Part Number	HT-400G-QDD-XXXC	Vendor Name	OEM
Connector Type	QSFP-DD to QSFP-DD	Data Rate	400Gbps
Mini. Bend Radius	30mm	Cable Type	OM4
Cable Length	1m (3ft)	Cable Jacket	OFNP
Transmitter	VSCEL	Receiver	850nm PD
Wavelength	850nm	Power Consumption	< 10W
DDM/DOM	Support	CDR (Clock and Data Recovery)	Internal on both TX & RX
Modulation	PAM4	FEC	Yes
Protocols	IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA,QSFP-DD-CMIS-rev4p0	Warranty	3 Years

1、400G QSFP-DD AOC
The 400G QSFP-DD AOC uses QSFP-DD package modules at both ends, using VCSEL array technology, PAM4-based signal modulation at 26.7Gbps baud rate, and eight 50G PAM4 electrical channels per connector, enabling rates of up to 50Gbps per channel. QSFP-DD is a popular package mode in 400G data centers QSFP-DD is a popular packaging model in 400G data centers, enabling interconnection between devices.

2、400G QSFP-DD to 2x200G QSFP56 AOC
400G QSFP-DD to 2x200G QSFP56 AOC active optical cable adopts 400G QSFP-DD connector at one end and two 200G QSFP56 connectors at the other end, which is used for interconnecting 1 channel of 400G and 2 channels of 200G Ethernet in data center, and each 200G QSFP56 connector owns four 50G PAM4 electrical channels. electrical channels.

3、400G QSFP-DD to 4x100G QSFP28 AOC
400G QSFP-DD to 4x100G QSFP28 AOC active optical cable with 400G QSFP-DD connector at one end and four 100G QSFP28 connectors at the other end is used for interconnecting 1 channel of 400G and 4 channels of 100G Ethernet in data center. Using reliable VCSEL array technology, it features low power consumption and low cost.

4、400G QSFP-DD to 8x50G SFP56 AOC
400G QSFP-DD to 8x50G SFP56 AOC active optical cable uses 400G QSFP-DD connector at one end and 8x50G SFP56 connectors at the other end, which is used for interconnecting 1x400G and 8x50G Ethernet in the data center, and each 50G SFP56 connector owns 1x50G PAM4 electrical channel.