Replacement for 176272-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 176272-B21 (176272-B21 - Compaq 20 GB Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 7200 rpm)? 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 176272-B21
| SKU | 176272-B21 |
|---|---|
| Product | 176272-B21 - Compaq 20 GB Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 7200 rpm |
| Current price | $291.79 |
| Stock status | In Stock |
| Detail page | View 176272-B21 › |
Drop-in replacements for 176272-B21
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.
201066-B21 - Compaq 40 GB 3.5 Internal Hard Drive - 1 Pack - IDE Ultra ATA/100 (ATA-6) - 7200 rpm - 128 KB Buffer
SKU: 201066-B21
Price: $144.58
250020-B21 - Compaq 80 GB 3.5 Internal Hard Drive - 1 Pack - OEM - IDE Ultra ATA/100 (ATA-6) - 7200 rpm - 2 MB Buffer
SKU: 250020-B21
Price: $182.93
251974-B21 - Compaq 20 GB 3.5 Internal Hard Drive - 1 Pack - IDE Ultra ATA/100 (ATA-6) - 7200 rpm - 2 MB Buffer
SKU: 251974-B21
Price: $213.26
230253-B21 - Compaq 60 GB 3.5 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 7200 rpm
SKU: 230253-B21
Price: $243.88
176275-021 - Compaq 20 GB 3.5 Internal Hard Drive - IDE Ultra ATA/100 (ATA-6) - 7200 rpm
SKU: 176275-021
Price: $503.34
231823-B22 - Compaq MSL5000 SDLT Internal Tape Drive - 110GB (Native)/220GB (Compressed) - 5.25 1/2H Internal
SKU: 231823-B22
Price: $438.16
192106-B25 - Compaq StorageWorks SDLT-220 Internal Tape Drive - 110GB (Native)/220GB (Compressed) - 5.25 1/2H Internal
SKU: 192106-B25
Price: $468.42
AHA2940ULTRAKIT - Adaptec 2940 Ultra Host Adapter - Up to 20MBps - 1 x 50-pin HD Ultra SCSI - SCSI External 1 x 50-pin Ultra SCSI - SCSI Internal
SKU: AHA2940ULTRAKIT
Price: $109.09
989000-R - Adaptec AHA-2940 Ultra SCSI Controller - 20MBps - 1 x 50-pin HD-50 Ultra SCSI - SCSI External 1 x 50-pin IDC Ultra SCSI - SCSI Internal
SKU: 989000-R
Price: $155.99
402153-001 - Compaq 402153-001 4.30 GB Internal Hard Drive - Wide Ultra SCSI - 7200 rpm
SKU: 402153-001
Price: $145.86
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.