The SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) costs $0.3113/GB while the KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack costs $0.2030/GB. KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack offers 35% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) vs KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack — Which Is Better Value?
Specification Comparison
| Spec | SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) | KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack |
|---|---|---|
| Brand | SanDisk | KingSpec |
| Capacity | 128GB | 128GB |
| $/GB | $0.3113 | $0.2030 |
| Price | $39.85 | $25.99 |
| Retailer | Newegg | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack offers better value at $0.2030//GB compared to the SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) at $0.3113//GB — that's roughly 35% less per gigabyte.
The best deal for the KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack is $25.99 at Newegg, while the SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) starts at $39.85 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 / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) and KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) or KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack a better deal?
As of June 2026, KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack offers better value at $0.2030//GB compared to SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) at $0.3113//GB. That is approximately 35% better value per gigabyte.
What is the price per GB of SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN)?
The SanDisk 128GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-128G-GN6IN) is currently priced at $0.3113/GB ($39.85 for 128GB) at Newegg.
Where can I buy KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack for the cheapest price?
The cheapest price for the KingSpec MIXAGE 128GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 128GB 1 Pack is $25.99 at Newegg, which works out to $0.2030/GB.