Alternative to MCX516A-GCAT: Better-Value Equivalents in Stock
Comparing the MCX516A-GCAT (Mcx516A-Gcat - Mellanox Connectx-5 En Pcie 3.0 Qsfp28 Network Adapter) against alternatives? Pro Disk Network stocks 12 similar NVIDIA parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the MCX516A-GCAT
| SKU | MCX516A-GCAT |
|---|---|
| Product | Mcx516A-Gcat - Mellanox Connectx-5 En Pcie 3.0 Qsfp28 Network Adapter |
| Current price | $431.58 |
| Stock status | In Stock |
| Detail page | View MCX516A-GCAT › |
Alternatives to MCX516A-GCAT
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
Mellanox MCX623436AN-CDAB NVIDIA MCX623436AN-CDAB ConnectX-6 DX 2 x Ports QSFP56 PCI Express 4.0 x16 Adapter Card
SKU: MCX623436AN-CDAB
Price: $989.47
NVIDIA MCX755106AC-HEAT ConnectX-7 2-Ports 200Gb/s QSFP112 PCI Express 5.0 x16 Plug-in Card Network Adapter (HP-labeled)
SKU: MCX755106AC-HEAT
Price: $2,444.21
VCQFX580-PCIE-T - PNY nVidia Quadro FX580 512MB PCIe GDDR3 DVI Display Port Video
SKU: VCQFX580-PCIE-T
Price: $410.41
GT320-PCIE-1024-PB - NVIDIA Nvidia GeForce GT 320 1GB DDR3 PCI Express DVI Low Profile Video Graphics Card
SKU: GT320-PCIE-1024-PB
Price: $154.59
405-PCIE-512-PB - NVIDIA Nvidia GeForce 405 512MB DDR2 PCI Express DVI Video Graphics Card
SKU: 405-PCIE-512-PB
Price: $163.84
GT420-PCIE-2GB-CO - NVIDIA Nvidia GeForce GT 420 2GB DDR3 PCI Express DVI Video Graphics Card
SKU: GT420-PCIE-2GB-CO
Price: $199.49
GTX660-PCIE-1536-PB - NVIDIA Nvidia GeForce GTX 660 1.5GB DDR5 PCI Express Dual Dvi Video Graphics Card
SKU: GTX660-PCIE-1536-PB
Price: $349.95
Dell 540-BDJE Nvidia ConnectX-6 Lx Dual Port 10/25GbE SFP28 OCP 3.0 Network Interface Card
SKU: 540-BDJE
Price: $500.00
NVIDIA MCX713104AS-ADAT ConnectX-7 4-Ports 50Gb/s SFP56 PCI Express 4.0 x16 HHHL Network Adapetr
SKU: MCX713104AS-ADAT
Price: $1,505.26
490565-002 - HP nVidia Quadro NVS 450 512MB PCIe Quad DP Display Port Graphic Adapter
SKU: 490565-002
Price: $408.25
Dell AC247797 is an OEM-branded NVIDIA Mellanox Quantum-2 QM9700 MQM9700-NS2F 1U InfiniBand spine switch with 32 OSFP 400Gb/s NDR ports providing 64 non-blocking NDR endpoints, 51.2Tb/s aggregate thro
SKU: AC247797
Price: $48,484.21
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.