Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Lightmatter announced a $400 million Series D on October 16, 2024, at a company-stated valuation of $4.4 billion. The company said the financing brought its total capital raised to $850 million and would help prepare its Passage photonic interconnect for deployment in partner data centers.
How much did Lightmatter raise?
The Series D raised $400 million, according to Lightmatter’s October 16, 2024 announcement. The company also reported a $4.4 billion valuation at the time and said it had raised $850 million in total capital to date. These are figures reported by Lightmatter, not independently audited financing disclosures.
Who led and participated in the round?
Lightmatter said the round was led by new investors advised by T. Rowe Price Associates, Inc. It named Fidelity Management & Research Company and GV (Google Ventures) among the participating existing investors. The announcement did not provide a breakdown of how much each investor contributed.
What did Lightmatter say it would do with the funding?
The company said it would use the financing to ready Passage, its photonic interconnect, for mass deployment in partner data centers. The announcement did not itemize spending or establish that deployment subsequently occurred.
#1 Best Overall
- 10GBASE-SR SFP+ to LC Optical 10 Gigabit Ethernet Fiber transceiver module, 10GbE Multimode SFP+(compatible with both 62.5um and 50um LC cables; supports OM1/OM2/OM3/OM4 fiber cables), Duplex LC connector, 850nm, DDM, up to 300m.
- [Wide Compatibility] Compatible with Cisco SFP-10G-SR, Meraki MA-SFP-10GB-SR, Ubiquiti UniFi UF-MM-10G, Fortinet, Mikrotik, Netgear, D-Link, Supermicro, TP-Link and Other Open Switches.
- [Easy to Use] Easy installation, plug and play, fully hot-pluggable with ESD protection. Widely used in network switch, server, or NIC with SFP+ to a 10 Gigabit fiber channel network with multimode LC for Network Attached Storage(NAS), Storage Area Network(SAN), and High Performance Computing(HPC) applications.
- [Durable & Low Power Consumption] Adopt high quality alloy, the shell is strong and wear-resistant; Low power consumption(less than 1.05watt) and low EMI emission design. SFP MSA Compliant, IEEE 802.3ae Compliant. Operating Temperature: 0°C to 70°C.
- [What you Get] 2x 100% tested 10GBase-SR modules, 3-Year warranty and lifetime tech support.
What does Lightmatter make?
Lightmatter describes its business as photonic infrastructure for AI systems at scale, including interconnects and lasers. Its company overview says it was founded by MIT researchers in 2017. The Series D announcement focused on preparing Passage for data-center use, rather than on consumer products.
Co-founder and CEO Nick Harris described Passage as “the world’s fastest photonic engine” and said the technology was intended to address limits on AI computing performance. “World’s fastest” is Lightmatter’s characterization, not an independently verified comparison.
Rank #2
- What You Get: 2pcs Gigabit Multi-Mode Ethernet SFP Slot media converters; 2pcs SFP BiDi LC Dual Multi-Mode transceiver; 2pcs AC/DC Power Supply; 1 x User’s Manual. Support wide power supply voltage (100V-240V), Power Supply: 5V-1A, UL Certified.
- Fiber Optical Port: 1.25Gbps SFP port, connecting the BiDi Multi-Mode LC Dual transceivers up to 550M(2 SFP LX Transceiver included); Fiber Type: MMF, Cable Type: UTP/STP Cat.5e for 100 meters.
- RJ45 Port: 10M/100M/1000M Auto-negotiation, full Duplex or half Duplex, Auto-negotiation, Supports MDI/MDIX auto-crossover, Complies with IEEE 802.3/802.3u/802.3z/802.3ab.
- Plug & Play: Simply plug in optical port and RJ45 port, and it will work immediatelly. Status LED's for TX, FX LINK/ACT, POWER, FDX to easily monitor network status. Supports jumbo frame size 9K bytes; Supports working temperature range from 0°C to 60°C.
- 【100% Money Guarantee】15 years OEM factory competency, Most efficient technical support with superb processing technology.★Our committed to provide the best product and services to every customer.
Is this a current funding announcement?
No. The Series D was announced in October 2024, so it is historical rather than newly announced. Lightmatter’s press-release archive lists later company announcements through September 17, 2026. That archive does not, by itself, establish whether Lightmatter has raised another funding round since the Series D.
Quick Recap
Best Value
- 1 pair of 10Gbps SFP+ BIDI Fibre Optic Transceiver Modules 1270nm/1330nm, Backward compatible with 2.5G and 1.25G standards, Simplex Single Mode SC Connector, Compatible with Freebox Ultra. Fibre port type: Simplex single-mode SC fibre optic cable 9/125um. Wavelength: TX1270nm/RX1330nm, TX1330nm/RX1270nm.
- With fibre port: single-mode SC connector (single-mode SCA & SC/UPC connector compatible), TX1270nm/RX1330nm and TX1330nm/RX1270nm. Data rate: 10Gbps, 2.5Gbps, 1.25Gbps.
- Wavelength : TX1270nm & RX 1330nm et TX1330nm & RX 1270nm. Signle 3.3V power supply and low power dissipation <1.0W, digital diagnostic monitor function.
- Compliant with IEEE 802.3ae 10GBase-LR and 10Gbase-LW..Universal compatibility: Cisco SFP-10G-BXD-I/SFP-10G-BXU-I, Ubiquiti UF-RJ45-10G, Netgear AXM765, D-Link DEM-440XT, Supermicro, D-Link, Huawei and other open switches. Not compatible with HP-Aruba, Intel, Arista, Mellanox, Dell Force10, Extreme, Brocade, Juniper.
- Plug and play, hot-pluggable. Turn the locking ring downwards at a 90-degree angle to unlock it and remove the transceiver from the switch.
Rank #4
- 1 Pair of 10Gbps SFP+ BiDi Fiber Optic Transceiver Module, Compatible with Cisco Switch.
- Fiber Port Type: Simplex 9/125um Single Mode SC Fiber Optic Cable Wavelength: TX1270nm/RX1330nm , TX1330nm/RX1270nm
- Compatible with Cisco Switch, Mikrotik, D-Link, Supermicro, Netgear, Huawei, TP-Link
- Transmission distance: up to 20KM with a Fiber Optic Cable SC/UPC to SC/APC singlemode simplex 9/125um OS2.
- Plug & play, hot plug Turn the lock ring down at a 90 degree angle to unlock and remove the transceiver from the switch. After-sales service available in France. Warranty: 5 years.
Rank #3
- Data Rate: 10G
- Wavelength: 1310-nm
- Reach: up to 10 km
- Fiber Type: Dual LC single-mode fiber
- Wide Compatibility - for Cisco SFP-10G-LR, Meraki MA-SFP-10GB-LR, Fortinet, Ubiquiti UniFi UF-SM-10G, Mikrotik, Netgear, D-Link, TP-Link, Linksys, Broadcom, Edge-core, EMC, F5, Meraki, Norkia, QTC, Supermicro and Other Open Switches.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →
