The Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card costs $0.5937/GB while the [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA costs $0.1852/GB. [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA offers 69% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card vs [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA — Which Is Better Value?
Specification Comparison
| Spec | Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card | [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA |
|---|---|---|
| Brand | Lexar | SanDisk |
| Capacity | 640GB | 512 GB |
| $/GB | $0.5937 | $0.1852 |
| Price | $379.99 | $94.83 |
| Retailer | Newegg | Amazon |
| Category | SD Cards | SD Cards |
| Subcategory | sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA offers better value at $0.1852//GB compared to the Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card at $0.5937//GB — that's roughly 69% less per gigabyte.
The best deal for the [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA is $94.83 at Amazon, while the Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card starts at $379.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card and [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA product page for detailed specifications and price history.
Frequently Asked Questions
Is Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card or [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA a better deal?
As of May 2026, [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA offers better value at $0.1852//GB compared to Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card at $0.5937//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card?
The Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card is currently priced at $0.5937/GB ($379.99 for 640GB) at Newegg.
Where can I buy [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA for the cheapest price?
The cheapest price for the [Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA is $94.83 at Amazon, which works out to $0.1852/GB.