add 52pi 2.5g pcie network adapter (#586)

* add 52pi 2.5g pcie network adapter

* add 52pi PD Power HAT

* update 52pi pcie x1 slot hat photo

Author: tltangliang

_hats/52pi-2.5g-pcie-network-adapter-hat.md

@@ -0,0 +1,12 @@
+---
+layout: hat
+title: "52Pi 2.5G PCIe Network Adapter"
+short_description: RTL8125BG 10/100/1000M/2.5G PCIe Ethernet for Raspberry Pi 5 
+status: prototype
+picture: "/images/hat-52pi-2.5g-pcie-network-adapter.jpg"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/585"
+link: "https://twitter.com/tltangliang/status/1747138465635164254"
+videos: []
+---
+This hat gives the Raspberry Pi 5 a 2.5G network port using the RTL8125BG chip. The length is longer than the standard HAT for easy rj45 connection.
+

_hats/52pi-pcie-x1-slot-hat.md

@@ -3,11 +3,11 @@ layout: hat
 title: "52Pi PCIe x1 Slot HAT"
 short_description: PCIe x1 open-ended slot atop the Pi 5.
 status: prototype
-picture: "/images/hat-52pi-pcie-x1-slot-hat.jpeg"
+picture: "/images/hat-52pi-pcie-x1-slot-hat.jpg"
 github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/566"
 link: "https://twitter.com/tltangliang/status/1732244831160942708"
 videos: []
 ---
 52Pi has been working on a PCIe x1 slot (open-ended) HAT board for the Pi 5, which would allow installing practically any PCIe device directly on top of the Pi 5.
 
-An external power plug is provided to power cards which could take up to 75W of PCIe power, and there is a switch so you can choose to either use external power or 5W power directly off the Pi's PCIe header.
+An external power plug is provided to power cards which could take up to 75W of PCIe power, and there is a switch so you can choose to either use external power or 5W power directly off the Pi's PCIe header.

_hats/52pi-pd-power-hat.md

@@ -0,0 +1,13 @@
+---
+layout: hat
+title: "52Pi PD Power HAT"
+short_description: 52Pi's PD Power HAT.
+status: prototype
+picture: "/images/hat-52pi-pd-power-hat.jpg"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/587"
+link: "https://twitter.com/tltangliang/status/1747146000635138552"
+videos: []
+---
+The Raspberry Pi 5 power requirements are 5V 5A PDO, which common PD power sources cannot satisfy. 
+
+This PD HAT from 52pi has a built-in DC-DC converter, supporting a wide voltage input of 9-24V or a PD power input of 9-20V. It outputs a maximum power of 5V 8A and supports the 5V 5A PDO of the Raspberry Pi 5. It seems that there's no need to purchase a dedicated power adapter for the Pi 5 separately.