MMA1L30-CM: NVIDIA Mellanox 100GbE QSFP28 CWDM4 Optical Transceiver
Also listed as: MMS1C30-CM, 01FT905
The NVIDIA MMA1L30-CM is a 100GBASE-CWDM4 QSFP28 optical transceiver module supporting 100 Gigabit Ethernet over single mode fibre up to 2 kilometers for Spectrum switches.
Specifications
| Part number | MMA1L30-CM |
|---|---|
| Brand | NVIDIA |
| Type | Transceivers |
| Other numbers | MMS1C30-CM, 01FT905 |
| Status | current |
| Form factor | QSFP28 |
| Speed | 100GbE |
| Wavelength nm | 1,310 |
| Connector | LC duplex |
| Cable type | Single Mode Fibre |
| Max distance m | 2,000 |
About the MMA1L30-CM
The NVIDIA MMA1L30-CM optical transceiver delivers intermediate reach 100 Gigabit Ethernet transport for data center campus backbones and spine leaf fabric architectures. Operating across four CWDM optical wavelength lanes around 1310 nanometers, it transmits high throughput traffic up to 2 kilometers over standard single mode optical fibre.
Compatibility
Compatible with NVIDIA Spectrum SN2000, SN3000, and SN4000 Series Ethernet switches. It operates with host Forward Error Correction (RS-FEC) enabled on QSFP28 interfaces to guarantee IEEE 802.3bm bit error rate standards under Cumulus Linux and Onyx environments.
How to identify a genuine unit
Packaged in an industry standard QSFP28 metallic shell featuring a green pull tab release mechanism denoting CWDM4 optical technology. The factory label clearly states part designation MMA1L30-CM, NVIDIA branding, serial number, and regulatory certification marks.
Buying used
Inspect the duplex optical port with a fiber scope to ensure no dust or surface scratching on the lenses. Mount the module into a switch QSFP28 port to verify that the transceiver authenticates cleanly and reports balanced optical power metrics across all four wavelength channels.
Fits these models
- NVIDIA Quantum CS7500
- NVIDIA Quantum Switch-IB SB7700
- NVIDIA Quantum Switch-IB SB7790
- NVIDIA Quantum Switch-IB 2 SB7800
- NVIDIA Quantum Switch-IB 2 SB7890
- NVIDIA Spectrum SN2010
- NVIDIA Spectrum SN2100
- NVIDIA Spectrum SN2410
- NVIDIA Spectrum SN2700
- NVIDIA Spectrum SN2740
- NVIDIA Spectrum-2 SN3420
- NVIDIA Spectrum-2 SN3700
- NVIDIA Spectrum-2 SN3700C
- NVIDIA Spectrum-2 SN3800
- NVIDIA Spectrum-3 SN4410
- NVIDIA Spectrum-3 SN4600
- NVIDIA Spectrum-3 SN4600C
- NVIDIA Spectrum-3 SN4700
Works together
How the NVIDIA MMA1L30-CM connects to servers, storage and the network: 3 ways, with the hardware on each path.
iSCSI and NVMe/TCP over Ethernet
Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.
Adapters for the server
MCX556A-ECAT NVIDIA ConnectX-5 VPI Dual-Port 100Gb/s EDR InfiniBand and 100GbE QSFP28 PCIe 3.0 x16 Adapter
MCX623106AN-CDAT NVIDIA ConnectX-6 Dx EN Dual-Port 100GbE QSFP56 PCIe 4.0 x16 Ethernet Network Adapter
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
Switches
NVIDIA Spectrum SN2010 half-width 1U
NVIDIA Spectrum SN2100 half-width 1U
NVIDIA Spectrum SN2410 1U fixed switch
NVIDIA Spectrum SN2700 1U fixed switch
Storage
Dell PowerMax 2500 4U multi-node rack
Dell PowerMax 8500 system bay multi-enclosure
Dell PowerProtect DD9900 2U appliance + shelves
Dell PowerProtect DD9910 2U appliance + shelves
Dell PowerStore 1200T 2U rack
Dell PowerStore 3200T 2U rack
File storage (NFS and SMB)
Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.
Adapters for the server
MCX623106AN-CDAT NVIDIA ConnectX-6 Dx EN Dual-Port 100GbE QSFP56 PCIe 4.0 x16 Ethernet Network Adapter
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
Switches
NVIDIA Spectrum SN2010 half-width 1U
NVIDIA Spectrum SN2100 half-width 1U
NVIDIA Spectrum SN2410 1U fixed switch
NVIDIA Spectrum SN2700 1U fixed switch
Storage
Dell PowerScale F210 1U node
Dell PowerScale F600 1U rack
Dell PowerScale F710 1U node
Dell PowerScale F900 2U rack
Dell PowerScale H700 4U
Dell PowerScale H7000 4U 4-node chassis
Hyperconverged cluster
Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.
HCI nodes
Dell VxRail E660N 1U rack
Dell VxRail P670F 2U rack
Dell VxRail P670N 2U rack
HPE SimpliVity 325 Gen10 Plus v2 1U rack
Adapters for the server
MCX623106AN-CDAT NVIDIA ConnectX-6 Dx EN Dual-Port 100GbE QSFP56 PCIe 4.0 x16 Ethernet Network Adapter
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
Switches
NVIDIA Spectrum SN2010 half-width 1U
NVIDIA Spectrum SN2100 half-width 1U
NVIDIA Spectrum SN2410 1U fixed switch
NVIDIA Spectrum SN2700 1U fixed switch
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- iSCSI explained mrplanb.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- Network monitoring tools compared mrplanb.com
Check compatibility with NVIDIA
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that NVIDIA has tested with the NVIDIA MMA1L30-CM.
- Compatibility NVIDIA Qualified System Catalog (certified GPU servers)
- Specifications NVIDIA Networking documentation (adapters, switches, cables)
- Support NVIDIA Enterprise Support
FAQ
What is the optical transmission range of the MMA1L30-CM optic?
It supports links up to 2 kilometers over standard duplex single mode fibre with host RS-FEC enabled.
What connector interface does it require?
It utilizes a standard duplex LC optical connector interface.
Buying or selling MMA1L30-CM?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- NVIDIA MMA1L30-CM 100GbE QSFP28 CWDM4 Transceiver Product Brief, checked 2026-10-27