I wonder if this is the time when we need to start putting heatsinks on our MicroSD cards. 900 MB/s has to produce some heat. Still, this ought to be amazing for SBCs and other I/O intensive SFF use cases.
chances that your shitty raspberrypi will support this are practically zero. and at the cost of SD Express card and controller needed to interface with it in the SoC, might as well just use emmc or ufs.
No, no, my RPI *must* support this.... Just teasing. More seriously, if we could actually get something well designed out of the SBC world it would support this and more.
It requires micro PCI-E for mobile interfacing bus on the second line of pins on the SD card. So with out that it works just like any ordinary SD card using now legacy interface.
Duo to cost, RBPi doesn't even have M.2, Sata slots, or even other advanced types of interfaces, hell it's still on USB2. And they just improved the Ethernet performance more than 100Mbps.
I always wanted RBPi to release a pro version, while there are plenty of other more powerful boards out there, the RBPi software side is more polished.
Those really fast SDExpress (micro or regular) cards are of great interest for cameras. Attempting to shoot 4K 10 bit HDR at 60 fps in good quality (RAW or ProRes) easily requires 200 Mbs or twice that. A large capacity uSDExpress card with that or a similar controller would take care of that.
Phone and other portable device sales have been tailing off almost across the board. That likely suppresses one of the demand drivers for micro sd card sales. Having new tech like SD Express would give an additional point to upgrading the previous gen handset for a time. Having this in new cameras obviously helps there as well.
I'm only wondering as the SD Express spec was already this late, why they didn't add support for PCIe 4.0 already? I mean they still need more time to actually have the cards/controllers not to mention the actual products, and PCIe 4.0 is just ringing the bell now. Soon it will find it's way for more products, the only reason I see they went for PCIe 3.0 instead is that PCIe 4.0 support could delay the actual products even more.
PCIe 4.0 will double the bandwidth, seeing the SD Express is limited to x1 lanes only, PCIe 4.0 support should bring us closer to 2GB/s. While some will say this is beyond our current needs, true, but considering that SD cards will be able to reach over 1TB soon then 2GB/s speed is good to actually read the full card quickly after being used.
Yes, pci-e 4.0 could double the speed on sd express and nvme 1.4 instead. They could have gone to pci -e 5.0 and then quadrupled it. It sounds like an idea for a dual gpu card like radron SSG AGAIN.
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Valantar - Friday, June 14, 2019 - link
I wonder if this is the time when we need to start putting heatsinks on our MicroSD cards. 900 MB/s has to produce some heat. Still, this ought to be amazing for SBCs and other I/O intensive SFF use cases.watersb - Friday, June 14, 2019 - link
Maybe thermals are part of the wear-leveling in the NAND chipsets and the controllers. Probably still testing that.timecop1818 - Friday, June 14, 2019 - link
chances that your shitty raspberrypi will support this are practically zero.and at the cost of SD Express card and controller needed to interface with it in the SoC, might as well just use emmc or ufs.
ballsystemlord - Friday, June 14, 2019 - link
No, no, my RPI *must* support this.... Just teasing.More seriously, if we could actually get something well designed out of the SBC world it would support this and more.
ZolaIII - Saturday, June 15, 2019 - link
It requires micro PCI-E for mobile interfacing bus on the second line of pins on the SD card. So with out that it works just like any ordinary SD card using now legacy interface.Xajel - Monday, June 17, 2019 - link
Duo to cost, RBPi doesn't even have M.2, Sata slots, or even other advanced types of interfaces, hell it's still on USB2. And they just improved the Ethernet performance more than 100Mbps.I always wanted RBPi to release a pro version, while there are plenty of other more powerful boards out there, the RBPi software side is more polished.
ZolaIII - Saturday, June 15, 2019 - link
Most quality SD cards possess high thermal & EMF protection as a standard for very long time time now.Chaitanya - Thursday, June 20, 2019 - link
Also cameras dont have random read/write requests rather its just sequential read/write operation that is performed from host to storage.eastcoast_pete - Saturday, June 15, 2019 - link
Those really fast SDExpress (micro or regular) cards are of great interest for cameras. Attempting to shoot 4K 10 bit HDR at 60 fps in good quality (RAW or ProRes) easily requires 200 Mbs or twice that. A large capacity uSDExpress card with that or a similar controller would take care of that.ajp_anton - Sunday, June 16, 2019 - link
200Mb/s is already easily achieved with any microSD card that doesn't suck.deil - Monday, June 17, 2019 - link
on read not write & 256 GB cards. And most people use 64 GB/32GB ones....damianrobertjones - Monday, June 17, 2019 - link
Does this mean that sales of sd cards have finally fallen? If so this could be why they're now planning on improving them to keep the $$$$ moving.desolation0 - Tuesday, June 18, 2019 - link
Phone and other portable device sales have been tailing off almost across the board. That likely suppresses one of the demand drivers for micro sd card sales. Having new tech like SD Express would give an additional point to upgrading the previous gen handset for a time. Having this in new cameras obviously helps there as well.Xajel - Monday, June 17, 2019 - link
I'm only wondering as the SD Express spec was already this late, why they didn't add support for PCIe 4.0 already? I mean they still need more time to actually have the cards/controllers not to mention the actual products, and PCIe 4.0 is just ringing the bell now. Soon it will find it's way for more products, the only reason I see they went for PCIe 3.0 instead is that PCIe 4.0 support could delay the actual products even more.PCIe 4.0 will double the bandwidth, seeing the SD Express is limited to x1 lanes only, PCIe 4.0 support should bring us closer to 2GB/s. While some will say this is beyond our current needs, true, but considering that SD cards will be able to reach over 1TB soon then 2GB/s speed is good to actually read the full card quickly after being used.
LordanSS - Monday, June 17, 2019 - link
I'd say power restrictions would be one of the reasons (at this point in time).carcakes - Wednesday, August 14, 2019 - link
Yes, pci-e 4.0 could double the speed on sd express and nvme 1.4 instead. They could have gone to pci -e 5.0 and then quadrupled it. It sounds like an idea for a dual gpu card like radron SSG AGAIN.carcakes - Wednesday, August 14, 2019 - link
Radeon SSG GPUcarcakes - Wednesday, August 14, 2019 - link
There is also only SD 7.1 standard. Maybe when SD 8.0 is out it will