Replacement for EK561AA: Drop-In Alternatives We Stock
Looking for a replacement for the EK561AA (EK561AA - HP Nvidia Quadro NVS-55 250MHz 64MB DDR SDRAM Video Graphics Card)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the EK561AA
| SKU | EK561AA |
|---|---|
| Product | EK561AA - HP Nvidia Quadro NVS-55 250MHz 64MB DDR SDRAM Video Graphics Card |
| Current price | $547.71 |
| Stock status | In Stock |
| Detail page | View EK561AA › |
Drop-in replacements for EK561AA
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.
645557-001 - HP Nvidia Quadro NVS 400 64MB DDR SDRAM DVI PCI Graphics Card
SKU: 645557-001
Price: $336.17
290855-001 - HP Nvidia GeForce4 MX 420 64MB DDR SDRAM AGP 4x/8x Graphics Adapter
SKU: 290855-001
Price: $566.89
455675-001 - HP Nvidia Quadro FX570 PCI-Express x16 256MB DDR2 SDRAM Memory (3840x2400 Resolution) Dual DVI 3D Video Graphics Card
SKU: 455675-001
Price: $266.21
634155-001 - HP Nvidia Quadro 4000M 2GB GDDR5 SDRAM 256-Bit Mobile Video Graphic Card for EliteBook 8760w
SKU: 634155-001
Price: $641.88
728556-001 - HP / Nvidia Quadro K4100M 4GB GDDR5 SDRAM 256-Bit Video Graphics Card for ZBook 17 Mobile Workstation
SKU: 728556-001
Price: $745.43
406412-001 - HP Nvidia Quadro NVS55 64MB DVI PCI Express Video Graphics Card
SKU: 406412-001
Price: $122.80
679855-B21 - HP Nvidia Quadro 3000M PCI-Express 2GB GDDR5 Mezzanine Video Graphics Card
SKU: 679855-B21
Price: $172.79
656455-001 - HP Nvidia Quadro NVS290 PCI-Express X1 256MB Graphics Video Graphics Card
SKU: 656455-001
Price: $199.41
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.