Replacement for HD-645X-ZNH2: Drop-In Alternatives We Stock
Looking for a replacement for the HD-645X-ZNH2 (HD-645X-ZNH2 - XFX Radeon HD6450 1GB DDR3 64-Bit PCI Express x16 2.1 Video Graphics Card)? Pro Disk Network ships 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 HD-645X-ZNH2
| SKU | HD-645X-ZNH2 |
|---|---|
| Product | HD-645X-ZNH2 - XFX Radeon HD6450 1GB DDR3 64-Bit PCI Express x16 2.1 Video Graphics Card |
| Current price | $380.16 |
| Stock status | In Stock |
| Detail page | View HD-645X-ZNH2 › |
Drop-in replacements for HD-645X-ZNH2
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.
HD-545X-ZHF2 - XFX Radeon HD 5450 Cedar 1GB 64-Bit DDR3 PCI Express 2.1 x16 DVI/ HDMI/ D-Sub/ HDCP Ready/ Low Profile Ready Video Graphics Card
SKU: HD-545X-ZHF2
Price: $263.05
HD-545X-ZAF2 - XFX Radeon HD 5450 1GB 64-Bit DDR3 PCI Express 2.1 x16 DisplayPort/ D-Sub/ DVI/ HDCP Ready/ Low Profile Ready Video Graphics Card
SKU: HD-545X-ZAF2
Price: $311.57
HD-545X-ZCH2 - XFX Radeon HD 5450 1GB DDR3 64-Bit PCI Express 2.1 Video Graphics Card
SKU: HD-545X-ZCH2
Price: $490.26
HD-645X-YNH2 - XFX Radeon HD 6450 512MB 32-Bit DDR3 PCI Express 2.1 x16 HDMI/ DVI/ D-Sub HDCP Ready Low Profile Ready Video Graphics Card
SKU: HD-645X-YNH2
Price: $377.99
HD-435X-ZAHR - XFX Radeon HD 4350 1GB DDR2 64-Bit D-Sub/ DVI/ HDTV Out PCI Express 2.0 x16 Video Graphics Card
SKU: HD-435X-ZAHR
Price: $283.63
HD-455X-ZAF2 - XFX Radeon HD 4550 1GB 64-Bit DDR2 PCI Express 2.0 x16 HDCP Ready Low Profile Ready Video Graphics Card
SKU: HD-455X-ZAF2
Price: $369.33
R5230AZLH2 - XFX AMD Radeon R5 230 1GB GDDR3 64-Bit PCI-Express 3.0 Video Graphics Card
SKU: R5230AZLH2
Price: $410.41
HD-435X-ZNH2 - XFX Radeon HD 4350 1GB DDR2 64-Bit HDMI/ D-Sub/ DVI PCI Express 2.0 x16 Video Graphics Card
SKU: HD-435X-ZNH2
Price: $438.63
HD-645X-ZQH2 - XFX Radeon HD 6450 625m 1GB DDR3 HDMI DVI VGA PCI Express Video Graphics Card
SKU: HD-645X-ZQH2
Price: $373.68
HD-455X-YAF2 - XFX Radeon HD 4550 512MB 64-Bit DDR2 PCI Express 2.0 x16 DVI/ D-Sub/ HDTV/ S-Video Out/ HDCP Ready Low Profile Video Graphics Card
SKU: HD-455X-YAF2
Price: $270.03
HD-465X-YAF2 - XFX Radeon HD 4650 512MB 64-Bit DDR2 PCI Express 2.0 x16 D-Sub/ DVI/ HDTV/ S-Video Out/ HDCP Ready Video Graphics Card
SKU: HD-465X-YAF2
Price: $358.53
GT-520M-ZNF2 - XFX GeForce GT 520 1GB DDR3 64-Bit PCI Express x16 2.0 Video Graphics Card
SKU: GT-520M-ZNF2
Price: $419.46
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.