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40G QSFP+ Direct Attach Cable QSFP Fanout Cable 5m For Data Centers / Fiber Channel

40G QSFP+ Direct Attach Cable QSFP Fanout Cable 5m For Data Centers / Fiber Channel

40G QSFP+ Direct Attach Cable QSFP Fanout Cable 5m For Data Centers / Fiber Channel

Product Details:

Place of Origin: China
Brand Name: Juhua/Neutral/OEM
Certification: CE,FCC,ROHS
Model Number: JH-40GDACx

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: Negotiation
Packaging Details: 1pcs one package
Delivery Time: 5-8 working days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 30000pcs/month
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Detailed Product Description
Connector: QSFP 38-PIN Connector Management Interface: Serial, I2C
Number Of Lanes: Tx & Rx Data Rate: 41.25Gbps
Compliant: SFF-8436 Operating Temperature: 0~70鈩

40G QSFP+ Direct Attach Cable (DAC) , Direct Attach QSFP Fanout Cable 5m 40G For Data Centers / Fiber Channel


JUHUA's JH-40GDAC is QSFP+ Direct Attach Cables are compliant with the SFF-8436 specifications. Various choices of wire gauge are available from 30 to 24 AWG with various choices of cable length (up to 7m). QSFP+ passive cable assemblies are high performance,cost effective I/O solutions for 40G LAN, HPC and SAN applications. The QSFP+ passive copper cables are compliant with SFF-8436, QSFP+ MSA and IEEE P802.3ba 40GBASE-CR4. It is offer a low power consumption, short reach interconnect applications. The cable each lane is capable of transmitting data at rates up to 10Gb/s, providing an aggregated rate of 40Gb/s.



High-Density QSFP 38-PIN Connector

Hybrid cable conforms to the Small Form Factor SFF-8436

Up to 10.3125Gbps data rate per channel

Maximum aggregate data rate: 41.25Gbps (4 ×10.3125Gbit/s)

Copper link length up to x (x=0.5~7m)

Up to 7m transmission

Power Supply: +3.3V

Low power consumption: 0.02 W (typ.)

Temperature Range: 0~ 70°C

RoHS compliant

Cost-effective copper solution

Lowest total system power solution

Lowest total system EMI solution

Optimized design for Signal Integrity



10G/40Gigabit Ethernet

InfiniBand SDR, DDR, QDR

Switches, Routers, and HBAs

Data Centers


General Product Characteristics:

QSFP DAC Specifications  
Number of Lanes Tx & Rx
Channel Data Rate 10.3125 Gbps
Operating Temperature 0 to + 70°C
Storage Temperature -40 to + 85°C
Supply Voltage 3.3 V nominal
Electrical Interface

38 pins edge connector

Management Interface Serial, I2C


High Speed Characteristics:

Parameter Symbol Min Typ Max Units Notes
Differential Impedance Zd 90 100 110 Ω  


Differential Input Return Loss




<-12+2* SQRT (f) with f in GHz dB 0.01~4.1GHz


Log10/(f/5.5) with f in GHz




Common Mode Output Return Loss



< -7+1.6*f with f in GHz dB 0.01~2.5GHz
    -3 dB 2.5~11.1GHz
Difference Waveform Distortion Penalty dWDPc     6.75 dB  
VMA Loss L     4.4



VMA Loss to Crosstalk Ratio VCR 32.5     dB  



Mechanical Specifications:

The connector is compatible with SFF-8436 specification.

Length (m) Cable AWG
1 30AWG
2 30AWG/26AWG
3 30AWG/26AWG
4 26AWG
5 26AWG/24AWG
6 24AWG
7 24AWG

Mechanical Dimensions:

40G QSFP+ Direct Attach Cable QSFP Fanout Cable 5m For Data Centers / Fiber Channel
Ordering Information:

Part Number Description
JH-40GDAC1 QSFP+ Passive Cables, 1m, 0ºC ~ +70ºC
JH-40GDAC2 QSFP+ Passive Cables, 2m, 0ºC ~ +70ºC
JH-40GDAC3 QSFP+ Passive Cables, 3m, 0ºC ~ +70ºC
JH-40GDAC4 QSFP+ Passive Cables, 4m, 0ºC ~ +70ºC
JH-40GDAC5 QSFP+ Passive Cables, 5m, 0ºC ~ +70ºC
JH-40GDAC6 QSFP+ Passive Cables, 6m, 0ºC ~ +70ºC
JH-40GDAC7 QSFP+ Passive Cables, 7m, 0ºC ~ +70ºC

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