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Vendor:Arista
Arista QDD-400G-VSR4-Arista | 400G QSFP-DD Transceiver, Multi-Mode, 850nm, 50m, MPO-12
QDD-400G-VSR4-Arista
Vendor:AristaArista QDD-400G-VSR4-Arista | 400G QSFP-DD Transceiver, Multi-Mode, 850nm, 50m, MPO-12
The Arista QDD-400G-VSR4 is a 400GBASE-VSR4 QSFP-DD transceiver designed for high-speed data center interconnects. It delivers 400 Gbps throughput over multi-mode OM4 fiber up to 50 meters using PAM4 modulation at 850nm wavelength. This plug-in module features an MPO-12 APC connector, supports digital optical monitoring, and complies with QSFP-DD MSA and IEEE 802.3bs standards for reliable short-reach applications. -
Vendor:Arista
Arista QDD-400G-VSR4 | 400G QSFP-DD Transceiver, Multi-Mode, 850nm, 50m, MPO-12
QDD-400G-VSR4
Vendor:AristaArista QDD-400G-VSR4 | 400G QSFP-DD Transceiver, Multi-Mode, 850nm, 50m, MPO-12
The Arista QDD-400G-VSR4 is a high-performance 400GBASE-VSR4 QSFP-DD transceiver designed for data center and high-performance computing environments requiring short-reach multi-mode connectivity. It delivers 400 Gigabit Ethernet throughput up to 50 meters over OM4 multi-mode fiber using an MPO-12 APC connector and 850nm wavelength. This hot-swappable module features PAM4 modulation technology, digital optical monitoring, and compliance with IEEE 802.3 and QSFP-DD MSA standards for seamless integration into modern switching infrastructure. -
Vendor:Arista
Arista QDD-400G-SRBD1 | 400G QSFP-DD BiDi Transceiver, MMF, 850nm/910nm, 100m
QDD-400G-SRBD1
Vendor:AristaArista QDD-400G-SRBD1 | 400G QSFP-DD BiDi Transceiver, MMF, 850nm/910nm, 100m
The Arista QDD-400G-SRBD1 is a 400GBASE-SR4.2 BiDi QSFP-DD optical transceiver designed for high-speed data center connectivity. Using bidirectional wavelength technology over four pairs of multimode fiber, it supports 400GbE links up to 100m on OM4 fiber and can break out to four 100GBASE-BIDI or 100GBASE-SR1.2 connections. The module features an MPO-12 UPC connector and is compliant with IEEE 802.3 and 400GAUI-8 PAM4 standards. -
Vendor:Arista
Arista QDD-400G-SRBD-Arista | 400G QSFP-DD Transceiver, 850nm/910nm, 100m OM4
QDD-400G-SRBD-Arista
Vendor:AristaArista QDD-400G-SRBD-Arista | 400G QSFP-DD Transceiver, 850nm/910nm, 100m OM4
The Arista QDD-400G-SRBD is a 400GBASE-SR4.2 QSFP-DD transceiver delivering 400 Gbps bandwidth over multimode fiber using bidirectional PAM4 technology. Supporting up to 100m on OM4 and 70m on OM3 fiber with an MPO-12 connector, it is optimized for high-density data center and cloud interconnects. Software-configurable to breakout into 4x 100GBASE-BIDI or 4x 100G-SR1.2 links, it offers flexible deployment for modern Arista switching platforms. -
Vendor:Arista
Arista QDD-400G-SR8-C-Arista | 400G QSFP-DD Transceiver, Multi-Mode, 850nm, 100m
QDD-400G-SR8-C-Arista
Vendor:AristaArista QDD-400G-SR8-C-Arista | 400G QSFP-DD Transceiver, Multi-Mode, 850nm, 100m
The Arista QDD-400G-SR8-C is a 400GBase-SR8 QSFP-DD transceiver designed for high-performance data center and enterprise network deployments. It delivers 400Gbps throughput over multi-mode fiber up to 100m using eight parallel optical channels at 850nm via an MPO-16 connector. This channelized module supports breakout configurations for flexible network architectures and is compliant with IEEE 802.3bs and QSFP-DD MSA standards. -
Vendor:Arista
Arista QDD-400G-SR8-C | 400G SR8 Transceiver, MMF 850nm, 100m, MPO-16
The Arista QDD-400G-SR8-C is a high-performance 400GBASE-SR8 QSFP-DD optical transceiver designed for short-reach data center interconnects. Operating at 850nm over multi-mode fiber with an MPO-16 connector, it supports transmission distances up to 100m on OM4 fiber. This channelized variant provides enhanced flexibility with breakout support for 400G, 2x200G-SR4, 8x50G-SR, or 8x25G-SR configurations, making it ideal for high-density spine-leaf architectures and AI cluster deployments. -
Vendor:Arista
Arista QDD-400G-SR8-Arista | 400GBASE-SR8 QSFP-DD Transceiver, 850nm, 100m MMF
QDD-400G-SR8-Arista
Vendor:AristaArista QDD-400G-SR8-Arista | 400GBASE-SR8 QSFP-DD Transceiver, 850nm, 100m MMF
The Arista QDD-400G-SR8 is a 400GBASE-SR8 QSFP-DD optical transceiver designed for high-speed data centre interconnects over multi-mode fibre. It uses eight parallel 850nm VCSEL channels operating at 53.125 Gbps each to deliver 400 Gbps aggregate throughput up to 100m over OM4 fibre via an MPO-16 connector. Fully compliant with IEEE 802.3bs and QSFP-DD MSA standards, this module supports digital diagnostics monitoring (DDM/DOM) and operates in commercial temperature ranges from 0 to 70°C. -
Vendor:Arista
Arista QDD-400G-PLR4-S-Arista | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
QDD-400G-PLR4-S-Arista
Vendor:AristaArista QDD-400G-PLR4-S-Arista | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
The Arista QDD-400G-PLR4-S is a 400GBASE-PLR4 QSFP-DD optical transceiver designed for high-performance data center and enterprise network applications. This module delivers 400 Gigabit Ethernet connectivity over single-mode fiber up to 10 km using an MPO-12/APC connector at 1310nm wavelength. It supports 4x100G breakout mode, enabling flexible connectivity to QSFP28 100G-LR transceivers for scalable network architectures. -
Vendor:Arista
Arista QDD-400G-PLR4-S | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
QDD-400G-PLR4-S
Vendor:AristaArista QDD-400G-PLR4-S | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
The Arista QDD-400G-PLR4-S is a 400GBASE-PLR4 QSFP-DD optical transceiver designed for 400 Gigabit Ethernet transmission up to 10km over single-mode fiber. It supports 4x100G breakout connectivity to QSFP28 100G-LR modules and uses an MPO-12 APC connector with four parallel optical lanes. Ideal for high-density data center interconnects, enterprise campus backbones, and cloud network infrastructure requiring long-reach 400G connectivity. -
Vendor:Arista
Arista QDD-400G-PLR4-Arista | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
QDD-400G-PLR4-Arista
Vendor:AristaArista QDD-400G-PLR4-Arista | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
The Arista QDD-400G-PLR4 is a 400GBASE-PLR4 QSFP-DD optical transceiver designed for high-performance data center and enterprise network applications. It delivers 400 Gigabit Ethernet connectivity over single-mode fiber up to 10 km using four parallel 100G lanes at 1310 nm wavelength via an MPO-12/APC connector. The module supports 4x100G breakout mode for flexible deployment and interoperates seamlessly with 100G-LR QSFP28 modules. -
Vendor:Arista
Arista QDD-400G-PLR4 | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
QDD-400G-PLR4
Vendor:AristaArista QDD-400G-PLR4 | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12
The Arista QDD-400G-PLR4 is a 400GBASE-PLR4 QSFP-DD transceiver designed for high-bandwidth data centre and enterprise network connectivity. It delivers 400 Gigabit Ethernet throughput up to 10km over single-mode fibre using four parallel lanes at 1310nm wavelength via MPO-12 connector. The module supports 4x100G breakout mode for flexible deployment and interoperates with 100G-LR QSFP28 transceivers. -
Vendor:Arista
Arista QDD-400G-LR8-Arista | 400G QSFP-DD Transceiver, 8x 50G PAM4, 1310nm, 10km
QDD-400G-LR8-Arista
Vendor:AristaArista QDD-400G-LR8-Arista | 400G QSFP-DD Transceiver, 8x 50G PAM4, 1310nm, 10km
The Arista QDD-400G-LR8 is a high-performance 400GBASE-LR8 QSFP-DD optical transceiver designed for data center and enterprise network applications requiring long-reach connectivity. It delivers 400Gbps throughput over duplex single-mode fiber at distances up to 10km using eight wavelengths at 1310nm with PAM4 modulation. Fully compliant with IEEE 802.3bs, QSFP-DD MSA, and 400GAUI-8 standards, this module features integrated DDM for real-time performance monitoring and supports duplex LC connectivity. -
Vendor:Arista
Arista QDD-400G-LR4-Arista | 400G QSFP-DD Transceiver, Single-Mode, 10km, LC
QDD-400G-LR4-Arista
Vendor:AristaArista QDD-400G-LR4-Arista | 400G QSFP-DD Transceiver, Single-Mode, 10km, LC
The Arista QDD-400G-LR4 is a 400GBASE-LR4 QSFP-DD optical transceiver designed for high-performance data center and enterprise network applications requiring long-reach connectivity. It delivers 400 Gbps throughput over single-mode fiber up to 10km using CWDM4 wavelengths (1271/1291/1311/1331 nm) with a duplex LC connector. This hot-swappable module supports Digital Optical Monitoring (DOM) for real-time performance tracking and is compliant with IEEE 802.3bs and QSFP-DD MSA standards. -
Vendor:Arista
Arista QDD-400G-LR4 | 400G QSFP-DD Transceiver, Single-Mode, 10km, LC
The Arista QDD-400G-LR4 is a high-performance 400GBASE-LR4 QSFP-DD optical transceiver designed for data center and enterprise applications requiring long-reach connectivity. It delivers 400 Gigabit Ethernet throughput over single-mode fiber up to 10 kilometers using four CWDM4 wavelengths and PAM4 modulation. Compliant with IEEE 802.3bs, QSFP-DD MSA, and OIF 56G PAM4 standards, this module features digital diagnostics monitoring and a duplex LC connector interface. -
Vendor:Arista
Arista QDD-400G-FR4-Arista | 400GBASE-FR4 Transceiver, 400G QSFP-DD, 1310nm, 2km SMF
QDD-400G-FR4-Arista
Vendor:AristaArista QDD-400G-FR4-Arista | 400GBASE-FR4 Transceiver, 400G QSFP-DD, 1310nm, 2km SMF
The Arista QDD-400G-FR4 is a high-performance 400GBASE-FR4 transceiver designed for 2km optical communication over single-mode fiber. This QSFP-DD module converts 8 channels of 50Gb/s PAM4 electrical signals into 4 CWDM optical wavelengths (1271/1291/1311/1331nm), multiplexed into a single 400G signal via a duplex LC connector. Ideal for data center interconnects and high-bandwidth applications requiring extended reach, it complies with IEEE 802.3bs and QSFP-DD MSA standards. -
Vendor:Arista
Arista QDD-400G-DR4-Arista | 400G QSFP-DD Transceiver, 1310nm, 500m SMF, MPO-12
QDD-400G-DR4-Arista
Vendor:AristaArista QDD-400G-DR4-Arista | 400G QSFP-DD Transceiver, 1310nm, 500m SMF, MPO-12
The Arista QDD-400G-DR4 is a 400GBASE-DR4 QSFP-DD optical transceiver designed for high-speed data center interconnects up to 500 meters over single-mode fiber. It converts 8 channels of 50Gb/s PAM4 electrical signals into 4 parallel 100Gb/s optical lanes at 1310nm wavelength via an MPO-12 connector. Compliant with QSFP-DD MSA and IEEE 802.3bs standards, it supports 4x100G breakout and features DOM for real-time optical diagnostics.
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Why buy Arista from XS Network Tech?
From pre-sales consultation to same-day dispatch, we make Arista procurement fast and hassle-free. Our sales and logistics team serves government departments, data centres, and service providers sourcing new, used, and EOL Arista hardware globally so you're never stuck waiting on a distributor. All used units tested and backed by a 12-month warranty.
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Can I still buy discontinued Arista models?
Yes. We carry end-of-life (EOL) Arista switches that are no longer available through other channels. We stock models from the 7050, 7280, 7500, and 7800R3 series. If you're expanding an existing fabric or need a like-for-like replacement without reconfiguring your entire stack, sourcing the same EOL model is often the most cost-effective decision.
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What Arista hardware does XS Network Tech stock?
Our Arista range covers data centre switches (7050X3, 7050X4, 7060X4, 7060X5, 7260X3, 7280R3, 7280R3A, 7300X3, 7800R3, 7800R4), enterprise and campus switches (7130, 7170, 7020R4), transceivers, ethernet cables, stacking cables, and switch modules. Can't find your model? Request a quote and we'll source it.
