The MakerBright Raspberry Pi 5 8GB Deluxe Kit has all the components needed to get started with Raspberry Pi 5:

Raspberry Pi 5 - 8GB (Released 2023)
Argon40 Aluminum Enclosure w/Fan - A fantastic enclosure with direct contact with the SoC so it acts as a giant heatsink. The included fan also aids in air flow in times of high CPU/GPU usage.
128GB SanDisk Ultra MicroSD Card w/PiOS
Official Raspberry Pi Real-Time Clock Battery - Great for running applications with specific time requirements.
Official Raspberry Pi MicroHDMI to HDMI Cable - 1m
Official Raspberry Pi 5 USB-C 27W PSU - 5.1V, 5A; 9V, 3A; 12V, 2.25A; 15V, 1.8A (Power Delivery)

Hook up your own mouse/keyboard and monitor/TV (not included).

Specification

Broadcom BCM2712 2.4GHz quad-core 64-bit Arm Cortex-A76 CPU, with cryptography extensions, 512KB per-core L2 caches and a 2MB shared L3 cache
VideoCore VII GPU, supporting OpenGL ES 3.1, Vulkan 1.2
Dual 4Kp60 HDMI® display output with HDR support 4Kp60 HEVC decoder
LPDDR4X-4267 SDRAM (4GB and 8GB SKUs available at launch)
Dual-band 802.11ac Wi-Fi®
Bluetooth 5.0 / Bluetooth Low Energy (BLE)
microSD card slot, with support for high-speed SDR104 mode
2 × USB 3.0 ports, supporting simultaneous 5Gbps operation
2 × USB 2.0 ports
Gigabit Ethernet, with PoE+ support (requires separate PoE+ HAT)
2 × 4-lane MIPI camera/display transceivers
PCIe 2.0 x1 interface for fast peripherals (requires separate M.2 HAT or other adapter)
5V/5A DC power via USB-C, with Power Delivery support
Raspberry Pi standard 40-pin header
Real-time clock (RTC), powered from external battery
Power button