Alternative to 40W1158: Better-Value Equivalents in Stock
Comparing the 40W1158 (40W1158 - IBM 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Single Rank Memory Module) against alternatives? Pro Disk Network stocks 12 similar IBM parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the 40W1158
| SKU | 40W1158 |
|---|---|
| Product | 40W1158 - IBM 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Single Rank Memory Module |
| Current price | $92.93 |
| Stock status | In Stock |
| Detail page | View 40W1158 › |
Alternatives to 40W1158
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.
43R2045 - IBM 1GB DDR3 DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDimm Single Rank Memory Module
SKU: 43R2045
Price: $92.55
46R3322 - IBM 1GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL2.5 240-Pin DIMM Memory Module
SKU: 46R3322
Price: $71.58
41R0770 - IBM / Lenovo 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Single Rank Memory Module
SKU: 41R0770
Price: $71.58
43C1705 - IBM 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM 1.35V Low Voltage Memory Module
SKU: 43C1705
Price: $71.58
41U5251 - IBM / Lenovo 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Single Rank Memory Module
SKU: 41U5251
Price: $92.93
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
51J0503 - IBM 1GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Single Rank Memory Module
SKU: 51J0503
Price: $92.93
41U6029 - IBM / Lenovo 1GB DDR3-1066MHz PC3-8500 non ECC Unbuffered CL7 240-Pin DIMM Memory Module
SKU: 41U6029
Price: $107.18
43R2046 - IBM 2GB DDR3 DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDimm Single Rank Memory Module
SKU: 43R2046
Price: $109.00
7430032 - IBM 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 240-Pin DIMM Memory Module
SKU: 7430032
Price: $76.13
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.