Replacement for 1821900-R: Drop-In Alternatives We Stock
Looking for a replacement for the 1821900-R (1821900-R - Adaptec 29160 Ultra 160 SCSI Controller Up to 160MBps 1 x 68-pin HD-68 Ultra160 SCSI External 1 x 68-pin HD-68 Ultra160 SCSI S)? 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 1821900-R
| SKU | 1821900-R |
|---|---|
| Product | 1821900-R - Adaptec 29160 Ultra 160 SCSI Controller Up to 160MBps 1 x 68-pin HD-68 Ultra160 SCSI External 1 x 68-pin HD-68 Ultra160 SCSI S |
| Current price | $163.74 |
| Stock status | In Stock |
| Detail page | View 1821900-R › |
Drop-in replacements for 1821900-R
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.
1870700 - Adaptec PowerDomain 29160 Ultra-160 SCSI Controller - Up to 160MBps - 68-pin HD-68 - SCSI External 68-pin Ultra160 SCSI - SCSI Internal 68
SKU: 1870700
Price: $312.93
1870600 - Adaptec PowerDomain 29160 Ultra-160 SCSI Controller - Up to 160MBps - 68-pin HD-68 - SCSI External 68-pin Ultra160 SCSI - SCSI Internal 68
SKU: 1870600
Price: $895.05
2253200-R - Adaptec 29160 Single Channel Ultra 160 SCSI Controller - Up to 160MBps - 1 x 68-pin HD-68 Ultra160 SCSI - SCSI External 1 x 68-pin Ultra160
SKU: 2253200-R
Price: $159.70
2253400-R - Adaptec 29160N Single Channel Ultra 160 SCSI Controller - Up to 160MBps - 1 x 50-pin Ultra SCSI - SCSI External 1 x 68-pin Ultra160 SCSI -
SKU: 2253400-R
Price: $588.49
1835200 - Adaptec 29160N Ultra-160 SCSI Controller - Up to 160MBps - 1 x 50-pin HD-50 Ultra SCSI - SCSI External 1 x 68-pin - SCSI Internal 1 x 50-p
SKU: 1835200
Price: $1,116.04
1863700-R - Adaptec 29160LP Ultra 160 SCSI Controller - Up to 160MBps - 1 x 68-pin VHDCI Ultra160 SCSI - SCSI External 1 x 68-pin Ultra160 SCSI - SCSI
SKU: 1863700-R
Price: $235.79
1852400-R - Adaptec 39160 Ultra 160 SCSI Controller - Up to 160MBps Per Channel - 2 x 68-pin VHDCI Ultra160 SCSI - SCSI External 2 x 68-pin HD-68 Ultra
SKU: 1852400-R
Price: $165.79
1822200 - Adaptec 19160 SCSI Controller Card - 160MBps - 1 x 50-pin Ultra SCSI - SCSI External 1 x 68-pin - SCSI Internal 1 x 50-pin Ultra SCSI - SC
SKU: 1822200
Price: $1,227.42
1836700 - Adaptec PowerDomain 29160N Single Channel Ultra-160 SCSI Controller - Up to 160MBps - 50-pin HD-50 - SCSI External 68-pin Ultra160 SCSI - S
SKU: 1836700
Price: $832.75
2093400 - Adaptec 2130SLP SCSI RAID Controller - 320MBps - 1 x 68-pin HD Ultra320 SCSI - SCSI Internal 1 x 68-pin VHDCI Ultra320 SCSI - SCSI External
SKU: 2093400
Price: $648.88
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.