Absolute Maximum Specifications
Absolute maximum ratings are those beyond which the device may be damaged.
Data input voltage
Control input voltage
This table shows the environmental specifications for the product.
This section shows the range of values for normal operation. The host board power supply filtering should be designed as recommended in the SFF Committee Spec.
Supply voltage (Vcc)
Power consumption (100GbE end no retiming)
Power consumption (100GbE retiming on all lanes)
Power consumption (50GbE end no retiming)
Power consumption (50GbE retiming on all lanes)
Supply noise tolerance (10 Hz – 10 MHz)
Operating case temperature
Operating relative humidity
BER (Bit Error Rate)
Differential data input swing at TP1a
According to IEEE 802.3bm
Differential data output swing at TP4
Differential input return loss
Meets equation (83E–5) in IEEE 802.3bm
Differential output return loss
Meets equation (83E–5) in IEEE 802.3bm
Common Mode output return loss
Output eye width (EW15)
Output eye height (EH15)
Notes:  BER performance was verified with a PRBS31 test pattern in accordance with the IEEE 802.3bm specifications, as part of the product qualification.  Requires optimization of the input equalizer.
For configurations tested with the AOCs please refer to the system level product quality assurance (SLPQA) report.
See LinkX® SFF Memory Map Application Note for details, reference .
3 +/- 0.2
Minimum bend radius
Length < 5 m: +300 /-0
Cable Length Definition
|100Gb/s Side||2x50Gb/s Side|
The following label is applied on the transceiver's backshell:
100GbE Backshell Label (New)
50GbE Backshell Label (New)
100GbE Backshell Label (Old)
50GbE Backshell Label (Old)
Images are for illustration purposes only. Product labels, colors, and lengths may vary.
Transceiver Backshell Label Serial Number Legend
2 digits (alphanumeric)
Year of manufacturing
2 last digits of the year (numeric)
Week of manufacturing
2 digit (numeric)
5 digits (decimal numeric) for serial number, starting from 00001.
The following label is applied on the cable’s jacket:
Cable Jacket Label (New)
Cable Jacket Label (Old)
Splitter Cable Labels Identifying the 2 QSFP28 Tails
Handling Precautions and Electrostatic Discharge (ESD)
The MFA7A20 is compatible with ESD levels in typical data center operating environments and certified in accordance with the standards listed in the Regulatory Compliance and Classification section below. The product is shipped with protective caps on its connectors to protect it until the time of installation. In normal handling and operation of high-speed cables and optical transceivers, ESD is of concern during insertion into the QSFP cage of the server/switch. Hence, standard ESD handling precautions must be observed. These include use of grounded wrist/shoe straps and ESD floor wherever a cable/transceiver is extracted/inserted. Electrostatic discharges to the exterior of the host equipment chassis after installation are subject to system level ESD requirements.
Regulatory Compliance and Classification
The laser module is classified as class I according to IEC 60825-1, IEC 60825-2 and 21 CFR 1040 (CDRH).
- Safety: CB, cTUVus, CE
- EMC: CE, FCC, ICES, RCM, VCCI
Ask your NVIDIA FAE for a zip file of the certifications for this product.
FCC Class A Notice
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.