QSFP-100G-ZR4 Arista Compatible 100GBASE-ZR4 QSFP28 Transceiver
Arista compatible QSFP-100G-ZR4 - Key Features
- Compatibility: Arista
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 80 km
- Guaranteed Link Budget: 30 dB
- Tx Wavelenght: 1310 nm
- Supported Data Rate: 103.125 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
Arista QSFP-100G-ZR4 Price
SKU:100G-QSFP28-80-AR
In Stock - Ships Next Business DayArista compatible QSFP-100G-ZR4 Specifications
Form Factor | QSFP28 |
Modulation | NRZ (Non-Return to Zero) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 80 km |
Guaranteed Link Budget | 30 dB |
TX Wavelenght | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
RX Wavelenght | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
Supported Data Rate | 103.125 Gbps |
Supportet Ethernet Applications | 100G Ethernet (103.125 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | EML Laser |
Tx Wave Bandwidth | 4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm) |
Average Launch Power (Min) Each Lane | 2 dBm |
Average Launch Power (Max) Each Lane | 6.5 dBm |
Extinction Ratio (Min) | 6 dB |
Receiver Type | SOA+PIN |
RX Wave Bandwidth | 4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm) |
Average Receiver Sensitivity (Min) Each Lane | -28 dBm |
Average Receiver Sensitivity (Max) Each Lane | -7 dBm |
Receiver Overload | 5.5 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 6.5 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, IEEE 802.3ba, 100GBASE-ZR4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665 |
Arista compatible QSFP-100G-ZR4 Datasheet
v3Complete technical specifications and product details
Arista compatible QSFP-100G-ZR4 Description
QSFP-100G-ZR4 is Arista's SKU for a 100GBASE-ZR4 QSFP28 — 100G over 80 km on standard single-mode fiber. Typical deployment: data centre interconnect or metro backbone links between Arista spine switches. EdgeOptic's compatible matches the original specifications and ships with Arista-recognized EEPROM coding for plug-and-play operation on supported Arista platforms.
Four LAN WDM channels — 1295.56, 1300.05, 1304.58, 1309.14 nm — each at 25G, totalling 103.125 Gbps. EML transmitters with PIN+SOA receivers. Receiver sensitivity better than -26.9 dBm, providing 30 dB of link budget over G.652 fiber. LC duplex, standard QSFP28 MSA form factor. Power consumption is approximately 5.5 W. The cooled EML lasers include integrated TEC controllers for wavelength stability.
Host RS-FEC (RS-528,514) must be enabled on the port — the module doesn't do FEC internally. EOS 4.26.2+ usually turns this on by default for ZR4 interfaces, but confirm during commissioning. Mismatched FEC between the two ends = no link.
Supported on Arista 7060X4, 7050X4, 7280 series, and 7050SX3 — EOS 4.26.2 or later required. One constraint: the 7050SX3-48YC8(C) only supports this module in front-to-rear airflow at 35 °C ambient max. ZR4 draws 5.5 W, and the SX3 thermal design has limited headroom at that power level. Always cross-check the switch model against the Arista Transceiver Guide before ordering.
DOM operates through the standard QSFP28 MSA I2C interface. TX/RX power per channel, module temperature, and supply voltage all display normally in EOS. On 80 km spans, DOM data is the primary tool for catching fiber degradation or connector issues before they take down the link. Proactive threshold monitoring is strongly recommended.
Short runs under roughly 15 km risk overdriving the receiver. Insert a 12 dB (or higher) LC inline attenuator in the path. This comes up frequently in lab setups and short metro/DCI hops where ZR4 gets used back-to-back across a patch panel. Also note: ZR4 cannot interoperate with LR4 at the far end — different transmitter architecture, different FEC model. Both sides of the link must be ZR4.
Full specs and the complete vendor lineup are on the 100GBASE-ZR4 QSFP28 product page. Questions about Arista platform fit — Contact our sales team.
Frequently Asked Questions
Does the QSFP-100G-ZR4 compatible require a minimum EOS version on Arista switches?
Yes — EOS 4.26.2 or later. Older releases don't support this module. Upgrade before inserting.
Can I use the QSFP-100G-ZR4 in an Arista 7050SX3 switch?
Only in the 7050SX3-48YC8(C) variant, and only with front-to-rear airflow at 35 °C ambient max. ZR4 draws 5.5 W, which pushes the SX3's thermal limits. Other 7050SX3 models may not support ZR4 at all — check the Arista Transceiver Guide for the specific variant.
Is RS-FEC required when using this 100G ZR4 transceiver on Arista?
Yes, mandatory. RS-FEC (RS-528,514) on the host side — the transceiver doesn't do FEC itself. EOS 4.26.2+ usually enables it by default for ZR4, but always confirm both ends match. Mismatched FEC settings = link stays down.
Do I need an attenuator for short fiber runs with this ZR4 module?
Under about 15 km, yes. Received power can overdrive the receiver. Insert a 12 dB (or higher) LC attenuator between the patch panel and the module. This applies to any ZR4 deployment, not just on Arista.