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Main image of Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Alt view image 2 of 7 - Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Alt view image 3 of 7 - Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Alt view image 4 of 7 - Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Alt view image 5 of 7 - Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Alt view image 6 of 7 - Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Alt view image 7 of 7 - Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

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Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

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ONE PORT, TWO PROTOCOLS: VPI dual-mode design runs 56Gb/s FDR InfiniBand or 40GbE Ethernet on the same QSFP+ port switch modes in firmware to match your fabric (MCX353A-FCBT).
ULTRA-LOW LATENCY: PCIe 3.0 x8 interface with as low as 1µs port-to-port latency, built for HPC clusters, distributed storage and latency-sensitive workloads.
NATIVE RDMA: Hardware InfiniBand RDMA and RoCE acceleration move data between nodes without CPU copies MPI jobs and Ceph/GPFS clusters finish faster.
OFFLOADS THAT SAVE CPU: Hardware I/O virtualization, QoS, congestion control and GPU communication offloading keep the host processor focused on compute.
CLUSTER-READY KIT: PXE/UEFI boot, energy-efficient design, Linux/Windows/VMware driver support; pair with QSFP+ DAC/AOC or 40G SR4 transceivers (sold separately).

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Model: ST7510

Data Rate	40Gbe
Port Type	1 x 40Gb QSFP+&FDR IB
PCIe Interface	PCIe 3.0 X8
Controller	ConnectX-3
RDMA	InfiniBand RDMA/RDMA (RoCE v1)
Virtualization Features	Hardware-Based I/O Virtualization: Single Root IOV, Address translation and protection, Dedicated adapter resources,Multiple queues per virtual machine, VMware NetQueue support
OS Compatibility	Windows, Linux, VMWare ESX/ESXi, XenServer
OPN	MCX353A-FCBT

Product Comparison

	ST7507	ST7510	ST7384	ST7369	ST7336	ST7337	ST7437
Customer Reviews	—	—	—	—	—	—	—
Price	—	—	—	—	—	—	—
Controller	ConnectX-3	ConnectX-3	ConnectX-3	ConnectX-4 LX	ConnectX-4	ConnectX-5	ConnectX-6 Dx
Port Type	1 x 10Gb SFP+	1 x 40Gb QSFP+& FDR IB	2 x 40Gb QSFP+& FDR IB	2 x 25Gb SFP28	2 x 100Gb QSFP28& EDR IB	2 x 25Gb SFP28	2 x 100Gb QSFP56
PCIe Interface	PCIe 3.0 X8	PCIe 3.0 X8	PCIe 3.0 X8	PCIe 3.0 X8	PCIe 3.0 X16	PCIe 3.0 X8	PCIe 4.0 X16
RDMA	RDMA (RoCE v1)	RDMA (RoCE v1)/InfiniBand RDMA	RDMA (RoCE v1)/InfiniBand RDMA	RDMA (RoCE v1/v2)	RDMA (RoCE v2)/InfiniBand RDMA	RDMA (RoCE v1/v2)	RDMA (RoCE v1/v2)
Reference OPN	MCX341A-XCGN/IPMI and NC-SI	MCX353A-FCBT	MCX354A-FCBT	MCX4121A-ACAT	MCX456A-ECAT	MCX512A-ACAT	MCX623106AN-CDAT

1Gbps Gigabit Ethernet
Aluminum Heatsink
Dual Brackets Included
2.5Gbps Multi-Gig Ethernet
Backward Compatible: 2.5G / 1G / 100M
PCIe x1, Low-Profile Bracket Included
10Gbps Single-Port RJ45
PCIe 4.0 x1
Wake-on-LAN / Jumbo Frame Support
NIC with Realtek Chip
10/25/100G NIC with Intel Chip
RDMA NIC with ConnectX Chip
NIC with Broadcom Chip
OCP 3.0 NIC
PoE+ Network Card

Model: ST7510

Data Rate	40Gbe
Port Type	1 x 40Gb QSFP+&FDR IB
PCIe Interface	PCIe 3.0 X8
Controller	ConnectX-3
RDMA	InfiniBand RDMA/RDMA (RoCE v1)
Virtualization Features	Hardware-Based I/O Virtualization: Single Root IOV, Address translation and protection, Dedicated adapter resources,Multiple queues per virtual machine, VMware NetQueue support
OS Compatibility	Windows, Linux, VMWare ESX/ESXi, XenServer
OPN	MCX353A-FCBT

Product Comparison

ST7507	ST7510	ST7384	ST7369	ST7336	ST7337	ST7437
Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews
—	—	—	—	—	—	—
Price	Price	Price	Price	Price	Price	Price
—	—	—	—	—	—	—
Controller	Controller	Controller	Controller	Controller	Controller	Controller
ConnectX-3	ConnectX-3	ConnectX-3	ConnectX-4 LX	ConnectX-4	ConnectX-5	ConnectX-6 Dx
Port Type	Port Type	Port Type	Port Type	Port Type	Port Type	Port Type
1 x 10Gb SFP+	1 x 40Gb QSFP+& FDR IB	2 x 40Gb QSFP+& FDR IB	2 x 25Gb SFP28	2 x 100Gb QSFP28& EDR IB	2 x 25Gb SFP28	2 x 100Gb QSFP56
PCIe Interface	PCIe Interface	PCIe Interface	PCIe Interface	PCIe Interface	PCIe Interface	PCIe Interface
PCIe 3.0 X8	PCIe 3.0 X8	PCIe 3.0 X8	PCIe 3.0 X8	PCIe 3.0 X16	PCIe 3.0 X8	PCIe 4.0 X16
RDMA	RDMA	RDMA	RDMA	RDMA	RDMA	RDMA
RDMA (RoCE v1)	RDMA (RoCE v1)/InfiniBand RDMA	RDMA (RoCE v1)/InfiniBand RDMA	RDMA (RoCE v1/v2)	RDMA (RoCE v2)/InfiniBand RDMA	RDMA (RoCE v1/v2)	RDMA (RoCE v1/v2)
Reference OPN	Reference OPN	Reference OPN	Reference OPN	Reference OPN	Reference OPN	Reference OPN
MCX341A-XCGN/IPMI and NC-SI	MCX353A-FCBT	MCX354A-FCBT	MCX4121A-ACAT	MCX456A-ECAT	MCX512A-ACAT	MCX623106AN-CDAT

1Gbps Gigabit Ethernet
Aluminum Heatsink
Dual Brackets Included
2.5Gbps Multi-Gig Ethernet
Backward Compatible: 2.5G / 1G / 100M
PCIe x1, Low-Profile Bracket Included
10Gbps Single-Port RJ45
PCIe 4.0 x1
Wake-on-LAN / Jumbo Frame Support
NIC with Realtek Chip
10/25/100G NIC with Intel Chip
RDMA NIC with ConnectX Chip
NIC with Broadcom Chip
OCP 3.0 NIC
PoE+ Network Card

One card, two fabrics. The GLOTRENDS ST7510 uses the Mellanox ConnectX-3 VPI controller (MCX353A-FCBT) to run InfiniBand FDR (56Gb/s) or 40GbE Ethernet on a single QSFP+ port choose per deployment, no hardware swap needed. For labs straddling both worlds (an existing IB scratch cluster plus a 40GbE storage network), one SKU covers both. The PCIe 3.0 x8 host interface sustains full fabric bandwidth with port latency as low as 1µs. Native InfiniBand RDMA and RoCE move data directly between node memory, bypassing the CPU MPI collective operations, distributed file systems and VM migration all complete measurably faster. Hardware QoS, congestion control and I/O virtualization keep large clusters stable under load. Typical buyers: university and research labs maintaining small IB clusters, homelabbers building 40G storage backends (Ceph, Lustre, BeeGFS), and system integrators refreshing legacy FDR fabrics who need verified-compatible spare cards. Specifications: 1x QSFP+ (FDR IB / 40GbE) | PCIe 3.0 x8 | InfiniBand RDMA + RoCE | SR-IOV, QoS, congestion control | PXE/UEFI boot | Low-power design.

Product information

Brand	GLOTRENDS
Hardware Interface	PCI Express x8
Color	Green
Compatible Devices	Entrylevel Server, Network Attached Storage (NAS), Small Businesses
Data Link Protocol	Ethernet, InfiniBand
Data Transfer Rate	40 gigabits_per_second
Compatible Operating System Family	Linux, Windows
Item Highlight	MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready
Number of Items	1
Manufacturer	glotrends
Built-In Media	GLOTRENDS ST7510 QSFP+ VPI RDMA Network Card, ConnectX-3, FDR InfiniBand / 40Gb Ethernet
Warranty Description	30 Day Warranty Against Manufacturer Defects

Details
Speed	40 gigabits_per_second
Connectors	40 gigabits_per_second
WiFi Generation	ConnectX-3
Wireless Speed	1-Port IB FDR/40Gb QSFP+
BUS	pci_express_x8
LEDs	Green
Wake On LAN	GLOTRENDS ST7510 QSFP+ VPI RDMA Network Card, ConnectX-3, FDR InfiniBand / 40Gb Ethernet

Features
Features	1-Port IB FDR/40Gb QSFP+, 40 gigabits_per_second, pci_express_x8, 30 Day Warranty Against Manufacturer Defects

Disclaimer
Disclaimer	not_applicable, 30 Day Warranty Against Manufacturer Defects

Additional Information
First Listed on Newegg	November 07, 2026

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Vszerda 40Gb PCIe Network Card, ConnectX-3 VPI, FDR InfiniBand / 40GbE | MCX353A-FCBT, 1x QSFP+, 56G FDR IB or 40GbE, PCIe 3.0 x8, RDMA, 1µs latency, HPC and storage cluster ready

Model: ST7510

Product Comparison

NIC with Realtek Chip

10/25/100G NIC with Intel Chip

RDMA NIC with ConnectX Chip

NIC with Broadcom Chip

OCP 3.0 NIC

PoE+ Network Card

Model: ST7510

Product Comparison

NIC with Realtek Chip

10/25/100G NIC with Intel Chip

RDMA NIC with ConnectX Chip

NIC with Broadcom Chip

OCP 3.0 NIC

PoE+ Network Card

Product information

Learn more about the Detailed Specifications

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info