800G/400G/200G QSFP-DD Transceivers Cables for RoCE Networking

From SFP to OSFP

	OSFP	QSFP-DD	QSFP Series				SFP Series
Size	OSFP QSFP-DD QSFP112/QSFP56/QSFP28/QSFP+ SFP28/SFP+/SFP
Form Factor	OSFP	OSFP	OSFP112	QSFP56	OSFP28	QSFP+	SFP28	SFP+	SFP
Electrical Lanes	8	8	4	4	4	4	1	1	1
Single Channel Rate	50G/100G/ 200G	25G/50G/100G	100G	50G	25G	10G	25G	10G	1G
Modulation	PAM4	NRZ/PAM4	PAM4	PAM4	NRZ/PAM4	NRZ	NRZ	NRZ	NRZ
Connector Types	MPO/LC	MPO/LC	MPO/LC	MPO/LC	MPO/LC	MPO/LC	LC	LC	LC
Backward Compatibility	/	QSFP+/QSFP28/ QSFP56/QSFP112	OSFP+/QSFP28/QSFP56	QSFP+/QSFP28	QSFP+	/	SFP+	SFP	/

Frequently Asked Questions

QSFP-DD Transceivers and Cables

What is the backward compatibility of QSFP-DD transceivers?

QSFP-DD ports are compatible with QSFP112, QSFP+, QSFP28, and QSFP56 transceivers, allowing for seamless network upgrades. However, QSFP-DD transceivers cannot be used in older QSFP ports.

What is the difference between QSFP-DD and QSFP56?

QSFP-DD supports 400G/800G via 8 lanes (50G/100G per lane), while QSFP56 supports 200G via 4 lanes (50G per lane). QSFP-DD ports are backward-compatible with QSFP56 modules, but QSFP56 ports cannot support QSFP-DD transceivers.

What is the difference between QSFP-DD and QSFP112?

QSFP112 supports up to 400G using 4 lanes (4×112G PAM4) in a compact design, ideal for high-density 400G deployments. QSFP-DD uses 8 lanes (8×50G/100G PAM4) to support 400G, and 800G, with enhanced thermal performance for higher-speed applications.

What is the transmission distance of QSFP-DD module?

Transmission distances vary by module type:

SR4/SR8: Up to 100m over multimode fiber (MMF).
DR4/XDR4/FR4/LR4/LR8: Up to 500m, 2km, and 10km over single-mode fiber (SMF).
ER4/ER8: Up to 40km over SMF.
ZR/ZR+/ZRP+: Reaching 120km or more over SMF.

Which switches are compatible with NADDOD QSFP-DD transceivers?

NADDOD QSFP-DD transceivers are widely supported by industry-leading switches. For 51.2T/25.6T AI-optimized switches, the 400G QSFP-DD transceivers work with switches like the NADDOD N9200-64DC, NVIDIA SN5400 (920-9N42C-00RB-7C0), Arista 7060DX5-64S, Cisco Nexus 9364D-GX2A, Juniper QFX5230, Dell Z9664F-ON, and H3C S9825-64D. The 800G modules are validated for switches such as Arista 7060DX5-64E, Cisco N9364E-SG2-Q, Juniper QFX5240-64QD, and H3C S9827-64E.

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800G/400G/200G QSFP-DD Transceivers and Cables

OSFP 400/800/1600G

QSFP-DD 400/800G

QSFP112 400G

QSFP56 200G

QSFP28 100G

QSFP+ 40G

SFP28 25G

SFP+ 10G

SFP 1G