全新Raspberry Pi 4
The ultimate Raspberry Pi! Raspberry Pi 4 has up to 4GB RAM, a faster quad-core CPU, support for dual displays at up to 4K resolution, Gigabit Ethernet, USB3.0, wireless LAN, Bluetooth 5.0, and USB-C power. That's desktop PC performance!
The overall form factor remains the same, so you'll still be able to use HATs and pHATs as before, but due to the changes to the ports on the Raspberry Pi 4, we've designed a brand new Pibow Coupé 4 case in three fetching colour-ways.
《Features》規格陸續更新中....不改內文
SPECIFICATION
- Processor：
＞ Broadcom BCM2711,
＞ quad-core Cortex-A72 (ARM v8)
＞ 64-bit SoC @ 1.5GHz - Memory： 1GB, 2GB or 4GB LPDDR4 (depending on model)
- Connectivity：
＞ 2.4 GHz and 5.0 GHz IEEE 802.11b/g/n/ac wireless LAN,
＞ Bluetooth 5.0, BLE Gigabit Ethernet
＞ 2 × USB 3.0 ports
＞ 2 × USB 2.0 ports. - GPIO：Standard 40-pin GPIO header
(fully backwards-compatible with previous boards) - Video & Sound：
＞ 2 × micro HDMI ports (up to 4Kp60 supported)
＞ 2-lane MIPI DSI display port
＞ 2-lane MIPI CSI camera port
＞ 4-pole stereo audio and composite video port - Multimedia：
＞ H.265 (4Kp60 decode);
＞ H.264 (1080p60 decode, 1080p30 encode);
＞ OpenGL ES, 3.0 graphics - SD card support：
＞ Micro SD card slot for loading operating system and data storage - Input power：
＞ 5V DC via USB-C connector (minimum 3A1)
＞ 5V DC via GPIO header (minimum 3A1)
＞ Power over Ethernet (PoE)–enabled (requires separate PoE HAT) - 5V 3A Power Input
| | 樹莓派Pi 3 B+ | 樹莓派Pi 4 |
| 技術 | 藍芽升級4.2版本、
無線升級雙頻網路 2.4Ghz + 5Ghz
透過USB 可將網路提升至300Mbps | 藍芽升級5.0版本、
無線雙頻網路 2.4Ghz + 5Ghz |
| 芯片 | 雙核GPU的Broadcom 升級BCM2837B0，
ARM的Cortex-A8(A53)四核處理器 | 雙核GPU的Broadcom BCM2711，
ARM的Cortex-A72 四核處理器 |
| 處理速度 | 1.4 GHz | 升級 換 1.5 GHz |
| 內存量 | 1 GB LPDDR2 memory | 1 GB、2GB、4GB （3種）
LPDDR4 memory |
| USB 2.0 | 4 x USB 2.0 sockets | 2x USB 3.0 ports
2x USB 2.0 ports |
| SD卡 | MicroSD | MicroSD |
| 插針 | 40 pin | 40 pin |
| 電源 | +5.1V @ 2.5A，多了POE功能(網路線供電) | 換 USB-C - 5V 3A，POE功能(網路線供電) |
| 尺寸 | 86 x 56 x 17mm | 85 x 56 x 17mm |
| HDMI接頭 | HDMI接頭 X1
| 換 micro HDMI 接頭 X2
|
| | 產品壽命最少保證 至 2023年 | 產品壽命最少保證 至 2026年 |
As always with new Raspberry Pi models, you'll need the latest version of NOOBS or Raspbian to run on your Raspberry Pi 4. We sell a pre-imaged 32GB NOOBS card separately, or you can get one with our fully-loaded Pimoroni Raspberry Pi 4 Complete Starter Kit.
《Desktop-level performance》
The faster 1.5GHz 64-bit quad-core CPU on the Raspberry Pi 4's Cortex A72 SoC, coupled with the up to 4GB LPDDR4 RAM give performance comparable to entry-level x86 desktop PCs. You'll see significantly faster boot speeds, and much better performance for CPU-heavy tasks like emulation and media centre usage; much snappier all round!
The Raspberry Pi 4 moves to USB-C power meaning that you'll need a new USB-C power supply that can supply 5V at 3A. We've got a couple of different options: a worldwide USB-C power supply, and the official Raspberry Pi power supply.
《Significantly faster IO》傳輸速度提高10倍
The Raspberry Pi 4 has two USB 3.0 ports, for up to 10x faster transfer speeds than USB 2.0, perfect for connecting fast peripherals like SSDs and flash drives. There are also two USB 2.0 ports for connecting less speed-dependent peripherals like keyboards and mice.
The ethernet jack on the Raspberry Pi 4 moves to true gigabit speed, for super-speedy wired networking and, as with the Raspberry Pi 3 B+, there's Power-over-Ethernet capability too (requires additional Raspberry Pi PoE HAT).
Raspberry Pi PoE Hat
http://twarm.com/commerce/product_info.php?products_id=15161
《4K display support, dual micro-HDMI》
There are dual micro-HDMI ports that support up to 4Kp60, to use your Raspberry Pi 4 with much larger displays with crisp, sharp, high resolution. Use the H.265 4Kp60 hardware decoding to watch 4K movies in your favourite media centre distro.
For the first time, you'll be able to use dual HDMI displays with the Raspberry Pi. This is great for working on a bunch of different tasks at the same time without having to work in tiny windows.
If you need a micro-HDMI adapter to use your existing HDMI cable with the Raspberry Pi 4 then we've got you covered!
《Bluetooth 5.0 and wireless LAN》2倍速度＋4倍範圍
The shift to Bluetooth 5.0 (from 4.2 on the Raspberry Pi 3 B+) means you'll get twice the speed (2 Mbit/s) and four times the range (50m outdoors, 10m indoors) that you did with the previous generation. You'll get better power efficiency compared with Bluetooth 4.2 also.
There's dual-band 802.11 b/g/n/ac wireless LAN, like the previous generation Raspberry Pi, for quick wireless networking with less interference and better reception.
