Replacement for 41R5578: Drop-In Alternatives We Stock
Looking for a replacement for the 41R5578 (41R5578 - IBM Fan Sink Performance for ThinkStation S20 Type 4105)? Pro Disk Network ships IBM 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 41R5578
| SKU | 41R5578 |
|---|---|
| Product | 41R5578 - IBM Fan Sink Performance for ThinkStation S20 Type 4105 |
| Current price | $319.18 |
| Stock status | In Stock |
| Detail page | View 41R5578 › |
Drop-in replacements for 41R5578
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.
03T8260 - IBM 2GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin DIMM Dual Single Rank Module for ThinkStation S30 (type 0567 0568 0569 0606)
SKU: 03T8260
Price: $71.58
46R6022 - IBM 1GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Single Rank Memory Module for ThinkStation D20 (Type 4155)
SKU: 46R6022
Price: $85.39
53Y6195 - IBM Lenovo 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Single Rank Memory Module for ThinkStation D20 (Type 4155)
SKU: 53Y6195
Price: $92.93
03T7857 - IBM 4GB DDR3-1600MHz PC3-12800 ECC Unbuffered CL11 240-Pin DIMM Single Rank Memory Module for ThinkStation S30 (type 0567 0568 0569 0606)
SKU: 03T7857
Price: $109.78
46R6025 - IBM 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Quad Rank Memory Module for ThinkStation D20 (Type 4155)
SKU: 46R6025
Price: $133.14
00D4953 - IBM 2GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin DIMM Dual Single Rank Module for ThinkStation S30 (type 0567 0568 0569 0606)
SKU: 00D4953
Price: $134.53
46R6023 - Lenovo / IBM 2GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Single Rank Memory Module for ThinkStation D20 (Type 4155)
SKU: 46R6023
Price: $164.04
03T8255 - IBM Lenovo Quadro NVS 310 512MB DDR3 SDRAM Graphic Card (High Profile) for ThinkStation S30 (type 0567 0568 0569 0606)
SKU: 03T8255
Price: $222.43
43C1516 - IBM System Board (Motherboard) Socket LGA771 for ThinkStation D10 (type 6427)
SKU: 43C1516
Price: $250.53
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.