Lowest now$757
Typical (median)$1,026
7 days0%
30 days—
Live listings40
Buy or wait? Wait: today's low is 10% above its 18-day average; it has been cheaper recently.
Cheapest Mellanox ConnectX-6 Dx MCX623106 (100GbE) listings right now
| Listing | Condition | Price + ship | ||
|---|---|---|---|---|
 |
Mellanox ConnectX-6 Dx MCX623106AC-CDAT 2-Port 100Gb PCIe Ethernet Adapter - LH Buy It Now offers | Used | $757 sale: was $834, −10% | View on eBay |
 |
Mellanox ConnectX-6 DX (MCX623106AC-CDAT) Dual-Port 100GbE PCIe Network Adapter Buy It Now offers | Used | $860 free ship | View on eBay |
 |
Mellanox MCX623106AN-CDAT ConnectX-6 DX 100GbE Dual-Port Ethernet Adapter Buy It Now offers | Used | $899 free ship | View on eBay |
 |
MCX623106AN-CDAT Mellanox ConnectX-6 Dx EN (2)100GbE QSFP56 PCIe 4.0x16 NIC Buy It Now | Used | $901 | View on eBay |
|
MCX623106AC-CDAT Mellanox ConnectX-6 Dx EN (2)100GbE QSFP56 PCIe 4.0x16 NIC Tall Buy It Now | Used | $901 | View on eBay |
 |
MCX623106AC-CDAT Mellanox ConnectX-6 DX 100G 2-Ports QSFP56 PCIe Network Adapter Buy It Now offers | Used | $979 free ship | View on eBay |
 |
NVIDIA MELLANOX 2x100GbE MCX623106AN-CDAT ConnectX-6 Dx EN Adapter Card - New Buy It Now offers | New | $988 free ship | View on eBay |
 |
MCX623106AC-CDAT Mellanox ConnectX-6 DX Dual Port 100Gb Ethernet Adapter Card Buy It Now offers | Used | $989 free ship | View on eBay |
 |
MELLANOX MCX623106AC-CDAT Dual Port 100GBE QSFP28 CONNECTX-6 DX EN NIC Buy It Now | Used | $999 free ship | View on eBay |
 |
Mellanox MCX623106AC-CDAT Dual Port 100GBE QSFP28 CONNECTX-6 DX EN Card Buy It Now | Used | $999 free ship | View on eBay |
 |
NVIDIA MELLANOX MCX623106AN-CDAT ConnectX-6 Dx EN Adapter Card 2x100GbE - New Buy It Now offers | New | $1,000 free ship | View on eBay |
 |
Mellanox ConnectX-6 Dx MCX623106AC-CDAT Dual Port 100GbE QSFP56 PCIe 4.0 x16 NIC Buy It Now offers | Used | $1,006 | View on eBay |
 |
Sealed New MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,020 free ship | View on eBay |
 |
New MELLANOX ConnectX-6 Dx 100GbE Adapter MCX623106AN-CDAT Buy It Now offers | New | $1,021 free ship | View on eBay |
 |
New MCX623106AN-CDAT MELLANOX MCX623106ANCDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,024 free ship | View on eBay |
|
New MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,024 free ship | View on eBay |
|
New MELLANOX MCX623106AN-CDAT ConnectX-6 Dx100GbE Adapter In Box MCX623106ANCDAT Buy It Now offers | New | $1,025 free ship | View on eBay |
|
New MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,025 free ship | View on eBay |
 |
New In Box MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,025 free ship | View on eBay |
|
New In Box MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,025 free ship | View on eBay |
 |
NVIDIA MELLANOX MCX623106AN-CDAT ConnectX-6 Dx EN Adapter Card 2x100GbE - New Buy It Now | New | $1,026 free ship | View on eBay |
 |
New MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,033 free ship | View on eBay |
 |
New In Box MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,035 free ship | View on eBay |
 |
** Mellanox ConnectX-6 DX 100GbE Dual-Port Ethernet Adapter MCX623106AN-CDAT ** Buy It Now offers | Used | $1,054 free ship | View on eBay |
 |
New MCX623106AN-CDAT Mellanox ConnectX-6 Dx EN (2)100GbE QSFP56 PCIe 4.0x16 NIC Buy It Now | New | $1,201 | View on eBay |
 |
HPE Mellanox MCX623106AS Dual Port 100 Ggiabit QSFP56 OCP Card P25960-B21 NEW Buy It Now offers | Open box | $1,217 | View on eBay |
|
New MELLANOX MCX623106AN-CDAT ConnectX-6 Dx 100GbE Adapter Buy It Now offers | New | $1,239 free ship | View on eBay |
 |
New NVIDIA Mellanox MCX623106AN-CDAT ConnectX-6 Dx 100GbE 2xQSFP56 Buy It Now offers | New | $1,275 free ship | View on eBay |
 |
** Mellanox ConnectX-6 DX 100GbE Dual-Port Ethernet Adapter MCX623106AN-CDAT ** Buy It Now offers | New | $1,343 free ship | View on eBay |
 |
MCX623106AS-CDAT-HP NEW SEALED Mellanox MCX623106AS-CDAT Ethernet 100Gb 2-port Buy It Now | New | $1,375 free ship | View on eBay |
Get a price-drop alert
We'll email you when a Mellanox ConnectX-6 Dx MCX623106 (100GbE) listing hits your price. One email per drop, unsubscribe in one click.
By continuing you agree to our Terms and Privacy Policy.
Where today's prices sit
40 live listings by price (item + shipping). The highlighted bar is the cheapest band.
Price history
typical asking price lowest asking price
Market read
Of 40 Buy It Now listings, 21 new (from $988), 19 used (from $757). The cheapest used copy is 23% below the cheapest new one. 82% ship free; the rest add $12.79 shipping at the median. The middle half of asking prices runs $1,000 to $1,375, so anything under $1,000 is in the cheapest quarter. Lowest we have recorded since 2026-10-19: $607 on 2026-10-21; today's cheapest is 25% above that.
Asking prices of US eBay listings including shipping, as of 2026-11-05 (checked twice a day); we earn a commission on purchases through these links; parts, broken units and accessories are filtered out. How we price.
Head to head
Compare
- Mellanox ConnectX-3 MCX354A (40/56GbE) $19.99
- Mellanox ConnectX-3 MCX311A (10GbE) $22.99
- Mellanox ConnectX-4 MCX4131A (50GbE) $29.49
- Mellanox ConnectX-5 MCX516A (100GbE) $199
- Intel X540-T2 (10GBase-T) $18.99
- Intel X550-T2 (10GBase-T) $72.98
- Intel XXV710-DA2 (25GbE) $39.98
- Intel E810-XXVDA2 (25GbE) $136
- Chelsio T520-CR (10GbE) $24.00
- Broadcom BCM57414 (25GbE) $25.99