Wiretrustee has designed an ultra-compact x4 SATA Raspberry Pi CM4 carrier board with up to 220MB/s throughput for NAS applications.
After watching a couple of videos from Jeff Geerling I thought I might try it out and build my own SATA carrier board for the CM4,” said an unnamed representative of the company who we suspect to be the brain behind the project. “I’m not chasing high IO therefore a limitation of PCIe x1 wasn’t a real problem to me. I still think you could have a decent speed with only one lane especially for my case where I anyway will connect and download/upload files from/to the home network via the internet (mobile mostly). So I made a decision and started building my own carrier board for CM4 since the alternative was a huge IO board with the PCIe card or some custom board but again with a PCIe card.” he added.
The Raspberry Pi compute module 4 carrier board features a number of ports for connectivity and power alongside other accessories like a four-pin fan header, a real-time clock, and a front-panel control board. There’s also a Marvell 88SE9215 controller which is responsible for the back and forth signal conversion between PCIe and SATA.
Board specifications:
- 4x SATA 2.0 ports
- USB-C Power 5V 5A (max)
- 1x microSD slot
- 1x GbE port
- 2x USB 2.0 ports
- HDMI 2.0
- 1x 4-pin 12V fan header
- RTC + battery backup
- LED Control board connected via FPC cable to the main one for a nicer NAS case design (includes SATA status LED, Power button and Reset button)
- Dimensions: 100 mm x 100 mm
Read more: WIRETRUSTEE DESIGNS A FOUR-PORT SATA RASPBERRY PI CM4 CARRIER BOARD FOR LOW-POWER NAS
