Replacement for ASR51645: Drop-In Alternatives We Stock
Looking for a replacement for the ASR51645 (ASR51645 - Adaptec 20-Port Battery 8-lane PCIe SAS SATA RAID Controller 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 ASR51645
| SKU | ASR51645 |
|---|---|
| Product | ASR51645 - Adaptec 20-Port Battery 8-lane PCIe SAS SATA RAID Controller card |
| Current price | $344.33 |
| Stock status | In Stock |
| Detail page | View ASR51645 › |
Drop-in replacements for ASR51645
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.
2268200-R - Adaptec 51245 16-port SAS RAID Controller Serial Attached SCSI (SAS) Serial ATA/300 PCI Express x8 Plug-in Card RAID Supported 0 1 1E 5
SKU: 2268200-R
Price: $1,398.91
2015000EU-R - Adaptec 1210SA 2-Port Serial ATA RAID Controller - Up to 150MBps Per Port - 2 x 7-pin SATA Serial ATA/150 - Serial ATA Internal
SKU: 2015000EU-R
Price: $271.20
2169400-R - Adaptec 2420SA 4 Port Serial ATA II RAID Controller - Up to 300MBps Per Port - 4 x 7-pin SATA Serial ATA/300 - Serial ATA Internal
SKU: 2169400-R
Price: $345.08
2169900-R - Adaptec 2820SA 8-Port Serial ATA II RAID Controller - Up to 300MBps Per Port - 8 x 7-pin SATA Serial ATA/300 - Serial ATA Internal
SKU: 2169900-R
Price: $876.22
2170000-R - Adaptec 2820SA 8-Port Serial ATA II RAID Controller - Up to 300MBps Per Port - 8 x 7-pin SATA Serial ATA/300 - Serial ATA Internal
SKU: 2170000-R
Price: $876.22
2260200-R - Adaptec 2405 4-Port SATA-300/SAS PCI-E x8 Low-Profile RAID Storage Controller
SKU: 2260200-R
Price: $344.33
2274200-R - Adaptec ASR-7805 Kit 6Gb/s 8INT Port PCI Express 3.0 X8 SAS/SATA RAID Controller
SKU: 2274200-R
Price: $357.09
2258200-R - Adaptec 5405 4-Port SAS / SATA 256MB DDR2 PCI-Express x8 RAID Controller
SKU: 2258200-R
Price: $461.84
2260300-R - Adaptec 2045 4 Port SATA/SAS PCI Express 8X 128MB DDR2 Cache RAID Controller Card
SKU: 2260300-R
Price: $485.53
ASR-2045 - Adaptec 2045 4 Port SATA/SAS PCI Express 8X 128MB DDR2 Cache RAID Controller Card
SKU: ASR-2045
Price: $485.53
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.