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J-Tech Digital HDMI 2.1 ARC Audio Extractor (8K/60, 4K/120)
Extracts audio from HDMI sources (HDMI‑out audio only, Optical SPDIF, 3.5mm). Supports 8K@60Hz and 4K@120Hz, HDR, and HDMI 2.1/HDCP 2.3. Also supports ARC (not eARC). Up to 5.1 channels; up to 7.1 via HDMI audio‑out.
$55
Terived 2‑Port DisplayPort USB 3.0 KVM Switch (8K/30, 4K/144)
Two‑computer / one‑monitor DP KVM with aluminum casing, hotkey switching, digital channel display, audio/mic support, and USB 3.0 device sharing. Supports 8K@30Hz and 4K@144Hz. Cables included.
$65
CMSTEDCD 8K HDMI KVM Switch (2 Computers → 1 Monitor)
HDMI 2.1 KVM with 8K@60Hz and 4K@120Hz support. Four USB 3.0 ports (up to 5Gbps), desktop wired controller, LED indicators, and includes 12V power adapter for stable USB device operation.
$50
FiiO BTA30 Pro — LDAC Bluetooth Transmitter/Receiver (Hi‑Res)
High‑resolution Bluetooth TX/RX unit supporting LDAC, aptX HD, SBC, etc. Features ES9038Q2M DAC, XMOS receiver supporting up to 384kHz PCM and DSD256, optical/coaxial/line‑out options, and three modes (RX, TX, digital‑decoder).
$90
Club3D CAC‑1336 — HDMI → USB‑C Active Adapter (4K120 / 8K30)
Active HDMI‑to‑USB‑C converter supporting 4K@120Hz or 8K@30Hz (requires monitor with DisplayPort Alt Mode 1.4). Plug‑and‑play; powered via Micro‑USB (5V/1.5A). Not bidirectional (HDMI → USB‑C only). Requires USB‑C cable supporting Alt Mode 1.4 for full spec.
$35
Shure AONIC 40 — Wireless Noise‑Canceling Headphones (Black)
Wireless ANC over‑ear headset from Shure’s AONIC line. Supports a wide variety of codecs beyond SBC. Unused, complete.
List price: $269
$120