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
- Average Link Budget: 30 dB
- Tx Wavelength: 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
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 |
Average Link Budget | 30 dB |
TX Wavelength | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
RX Wavelength | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
Supported Data Rate | 103.125 Gbps |
Supported 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, MSA-extended from IEEE 802.3ba LR4, 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
EdgeOptic's QSFP-100G-ZR4 compatible is an Arista-coded 100GBASE-ZR4 QSFP28 transceiver for 100Gb/s Ethernet over 80 km of duplex single-mode fiber. The standard is MSA-extended from IEEE 802.3ba LR4: 4x25G NRZ direct-detection over a 4-channel LAN-WDM grid, with the link budget pushed to 30 dB to reach 80 km on G.652 SMF.
The four LAN-WDM channels sit at 1295.56, 1300.05, 1304.58 and 1309.14 nm and are multiplexed into a single LC duplex pair. EML transmitters at +2.0 to +6.5 dBm per lane average launch power deliver the headroom for the long reach; SOA+PIN receivers at -28 dBm/lane minimum sensitivity recover the signal at the far end. Receiver overload is -5.5 dBm/lane. Power draw is 5.5 W max at 3.3 V per Arista's published QSFP-100G-ZR4 spec, commercial 0 to 70 °C operating range.
EdgeOptic's QSFP-100G-ZR4 compatible ships with Arista-coded EEPROM for plug-and-play operation on EOS. Per the Arista Transceiver and Cable Guide, the QSFP-100G-ZR4 requires a minimum EOS version of 4.26.2 across all supported chassis. Host RS-FEC (RS-528,514) is required at both ends of the link; per the Arista 100G Optics FAQ, EOS 4.26.2 and later enables RS-FEC by default on ZR4 interfaces, but FEC state should be confirmed with 'show interfaces transceiver' during commissioning.
Per the Arista Transceiver and Cable Guide platform table, QSFP-100G-ZR4 is supported on the 7020SR-32C2 (both 100G QSFP ports, front-to-rear airflow only), 7050SX3-48YC8 and -48YC8C (all 100G QSFP ports, front-to-rear airflow at max 35 °C ambient), 7280R / 7280R3 series including 7280CR2-30, 7280SR2K-48C6, the 7280CR3, 7280SR3 and 7280CR3K families with per-port and ambient restrictions, the 7358-16C, the 7500R2-36CQ-LC line card (up to 16 ZR4 modules, with co-installed optics under 4.5 W), the 7500R3-36CQ line card, and 7800R3-48CQ line cards (odd-numbered ports only, with co-installed optics under 4.5 W). Confirm port, airflow and per-slot eligibility for your specific chassis against Arista Transceiver and Cable Guide Table 6.1.
Two deployment notes worth flagging at commissioning. First, ZR4 will not interoperate with a standard 100GBASE-LR4 endpoint, since LR4 does not enable FEC by default; plan ZR4 deployments end to end. Second, the Arista 100G Optics FAQ specifies a minimum of 12 dB attenuation between two ZR4 endpoints to prevent permanent receiver damage on short fiber spans. On a campus DCI link with little fiber loss, an inline attenuator brings the receive level back into the operating window. DOM is exposed via SFF-8636 and reads cleanly through 'show interfaces transceiver'.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For volume pricing, evaluation units or Arista platform-specific coding requests, contact our sales team.
Frequently Asked Questions about Arista QSFP-100G-ZR4
What minimum EOS version is required for the QSFP-100G-ZR4 on Arista switches?
EOS 4.26.2 or later. The Arista Transceiver and Cable Guide lists 4.26.2 as the minimum EOS version for QSFP-100G-ZR4 across all supported platforms. Older EOS releases will not enumerate the module correctly. Per the Arista 100G Optics FAQ, EOS 4.26.2 and later enables RS-FEC by default on ZR4 interfaces, but FEC state should be confirmed during commissioning.
Can I use the QSFP-100G-ZR4 in an Arista 7050SX3 switch?
Yes. Per the Arista Transceiver and Cable Guide, QSFP-100G-ZR4 is supported on the 7050SX3-48YC8 and 7050SX3-48YC8C across all 100G QSFP ports, with two deployment constraints: front-to-rear airflow only (the -F airflow SKUs) and a maximum ambient temperature of 35 °C. The constraint comes from the module's 5.5 W power draw. Rear-to-front (-R) chassis variants are not supported, and elevated ambient operation outside the 35 °C ceiling is not covered. Confirm chassis airflow direction and rack-inlet temperature before deploying.
Do I need an attenuator for short fiber runs with this ZR4 module?
Yes if the link is short. The Arista 100G Optics FAQ specifies a minimum of 12 dB attenuation between two ZR4 endpoints to prevent permanent damage to the SOA+PIN receiver. ZR4 launches at +2 to +6.5 dBm per lane to reach 80 km, and the receiver overload threshold is -5.5 dBm per lane. On a campus DCI link with little fiber loss, an inline LC attenuator brings the receive power back into the operating window. Plan for at least 12 dB total link loss; below that, attenuate.
Will the QSFP-100G-ZR4 interoperate with a 100GBASE-LR4 module at the far end?
No. ZR4 always uses RS-FEC (RS-528,514); standard 100GBASE-LR4 does not enable FEC by default, and the two cannot link up together. If you have an existing LR4 link and want 80 km reach, both ends need to be ZR4 (or both ends LR4 for the original 10 km reach). A mixed ZR4/LR4 pair on the same fiber will not come up.