Crucial Shows Off First USB4 Portable SSD Prototypes, LPCAMM2 Memory at CES
Crucial, the client-focused brand of memory giant Micron Technology, showed off a handful new innovations at its booth along the sidelines of the 2024 International CES. First up, is a prototype USB4 portable SSD and prototype desktop SSD. These are proofs of concept, and not actual products. With this, Crucial is testing the waters with USB4 and its delicious 40 Gbps bidirectional bandwidth, which unlocks a new generation of fast removable storage devices. The prototype USB4 portable SSD comes in a tiny chassis about the size of a burner phone. It is a PCB with an M.2-2280 slot with PCIe Gen 4 x4 wiring, connected to an ASMedia ASM2464PD USB4 bridge chip. An OEM Micron Gen 4 SSD with 232-layer 3D TLC NAND flash and LPDDR4 DRAM cache, is installed on this drive. The CDM reading for this drive is 3821 MB/s sequential reads, with 885 MB/s sequential writes.
Next up, is a larger desktop SSD prototype (which again, isn't an actual product but a proof of concept). Its metal chassis is about the size of a 3.5-inch HDD. Inside is at least one M.2-2280 Gen 4 slot (there are probably more); with a preinstalled drive. An ASMedia ASM2464PD handles things here, too. The performance is mostly similar, at 3792 MB/s sequential reads, but with significantly increase 3803 MB/s sequential writes. This may seem unspectacular because Thunderbolt 4 has been delivering 40 Gbps for many years now, and we've had TB4-based external SSDs; but USB4 somewhat democratizes this kind of bandwidth.
Next up, is a larger desktop SSD prototype (which again, isn't an actual product but a proof of concept). Its metal chassis is about the size of a 3.5-inch HDD. Inside is at least one M.2-2280 Gen 4 slot (there are probably more); with a preinstalled drive. An ASMedia ASM2464PD handles things here, too. The performance is mostly similar, at 3792 MB/s sequential reads, but with significantly increase 3803 MB/s sequential writes. This may seem unspectacular because Thunderbolt 4 has been delivering 40 Gbps for many years now, and we've had TB4-based external SSDs; but USB4 somewhat democratizes this kind of bandwidth.