The SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] costs $0.1797/GB while the Unirex UMS645MUHS1 64GB microSDHC Card costs $0.1873/GB. SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] offers 4% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] vs Unirex UMS645MUHS1 64GB microSDHC Card — Which Is Better Value?
Unirex UMS645MUHS1 64GB microSDHC Card
Specification Comparison
| Spec | SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] | Unirex UMS645MUHS1 64GB microSDHC Card |
|---|---|---|
| Brand | SanDisk | Unirex |
| Capacity | 128 GB | 64GB |
| $/GB | $0.1797 | $0.1873 |
| Price | $23.00 | $11.99 |
| Retailer | Amazon | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] offers better value at $0.1797//GB compared to the Unirex UMS645MUHS1 64GB microSDHC Card at $0.1873//GB — that's roughly 4% less per gigabyte.
The best deal for the SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] is $23.00 at Amazon, while the Unirex UMS645MUHS1 64GB microSDHC Card starts at $11.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] and Unirex UMS645MUHS1 64GB microSDHC Card product page for detailed specifications and price history.
Frequently Asked Questions
Is SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] or Unirex UMS645MUHS1 64GB microSDHC Card a better deal?
As of May 2026, SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] offers better value at $0.1797//GB compared to Unirex UMS645MUHS1 64GB microSDHC Card at $0.1873//GB. That is approximately 4% better value per gigabyte.
What is the price per GB of SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version]?
The SANDISK 128GB Ultra SDXC UHS-I Memory Card - 120MB/s, C10, U1, Full HD, SD Card - SDSDUN4-128G-GN6IN [Older Version] is currently priced at $0.1797/GB ($23.00 for 128 GB) at Amazon.
Where can I buy Unirex UMS645MUHS1 64GB microSDHC Card for the cheapest price?
The cheapest price for the Unirex UMS645MUHS1 64GB microSDHC Card is $11.99 at Newegg, which works out to $0.1873/GB.