Replacement for C6398B: Drop-In Alternatives We Stock
Looking for a replacement for the C6398B (C6398B - HP 18GB 7200RPM Ultra-2 Wide SCSI Single Ended Low Voltage Differential (LVD) 68-Pin 3.5-inch Rack Mountable Hard Drive)? 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 C6398B
| SKU | C6398B |
|---|---|
| Product | C6398B - HP 18GB 7200RPM Ultra-2 Wide SCSI Single Ended Low Voltage Differential (LVD) 68-Pin 3.5-inch Rack Mountable Hard Drive |
| Current price | $746.95 |
| Stock status | In Stock |
| Detail page | View C6398B › |
Drop-in replacements for C6398B
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.
C6398-63002 - HP 18GB 7200RPM Ultra-2 Wide SCSI Single Ended Low Voltage Differential (LVD) 68-Pin 3.5-inch Rack Mountable Hard Drive
SKU: C6398-63002
Price: $940.50
C6399-69002 - HP 18GB 10000RPM Ultra-2 Wide SCSI Single Ended Low Voltage Differential (LVD) 68-Pin 3.5-inch Rack Mountable Hard Drive
SKU: C6399-69002
Price: $164.21
C6399-63002 - HP 18GB 10000RPM Ultra-2 Wide SCSI Single Ended LVD 68-Pin Rack Mountable 3.5-inch Hard Drive
SKU: C6399-63002
Price: $339.33
A5286-60751 - HP 18GB 7200RPM Fast Wide Differential SCSI Single-Ended Hot-Pluggable 80-Pin 3.5-inch Hard Drive
SKU: A5286-60751
Price: $401.92
A5286-69751 - HP 18GB 7200RPM Fast Wide Differential SCSI Single-Ended Hot-Pluggable 80-Pin 3.5-inch Hard Drive
SKU: A5286-69751
Price: $401.92
HP A5286A/PSI 18GB 7200RPM Fast Wide Differential SCSI Single-Ended Hot-Pluggable 80-Pin 3.5-inch Hard Drive
SKU: A5286A-PSI
Price: $407.47
A5286-60050 - HP 18GB 7200RPM Fast Wide Differential SCSI Single-Ended Hot-Pluggable 80-Pin 3.5-inch Hard Drive
SKU: A5286-60050
Price: $503.09
342504-001 - HP SureStore 20/40GB DAT40I Ultra Wide SCSI Low Voltage Differential (LVD) Single Ended DDS-4 Internal Tape Drive
SKU: 342504-001
Price: $233.68
DW002-60005 - HP SureStore 20/40GB DAT40I Ultra Wide SCSI Low Voltage Differential (LVD) Single Ended DDS-4 Internal Tape Drive
SKU: DW002-60005
Price: $263.16
C5686-67203 - HP SureStore 20/40GB DAT40I Ultra Wide SCSI Low Voltage Differential (LVD) Single Ended DDS-4 Internal Tape Drive
SKU: C5686-67203
Price: $304.34
A5806-69001 - HP 9.1GB 7200RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: A5806-69001
Price: $170.00
A3647-67001U - HP 4.3GB 7200RPM Ultra Wide SCSI Hot-Pluggable Single Ended 3.5-inch Hard Drive
SKU: A3647-67001U
Price: $199.96
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.