This article covers StarTech.com PCI Express x1－x16変換カード ロープロファイル用スロット拡張アダプタ(PCIe x1からx16へ) PEX1TO162.

Overview

The StarTech.com PEX1TO162 is a compact PCI Express adapter that lets you install a full-size x16 card into an x1 slot. It uses a pass-through design, so there's no active electronics — the electrical connection remains x1, but the physical connector is x16. This makes it possible to use RAID controllers, capture cards, or other x16 devices in motherboards where only an x1 slot is available (e.g., Mini-ITX, thin clients). The included low-profile bracket also allows proper mounting of low-profile cards in standard full-profile chassis.

Connectivity & Compatibility

Electrical interface: PCI Express x1 (compatible with Gen 1 through Gen 5) Physical interface: PCI Express x16 Form factor: Low-profile and full-profile compatible (bracket included) Dimensions: 21.9 x 4.6 x 15.8 cm; weight: 0.01 kg (10 grams) Included accessories: Adapter card, low-profile bracket, mounting screws Note: Since the electrical link is x1, this adapter is unsuitable for high‑bandwidth devices like gaming graphics cards.

Product Info

Released several years ago, the PEX1TO162 remains a popular solution for slot compatibility issues. It is widely available from Japan at around ¥3,940. StarTech.com backs it with a standard 2‑year warranty. The package contains only the adapter and bracket, keeping installation simple. It sits in the entry-to-mid range — a cost‑effective alternative to replacing a motherboard or buying a different expansion card.

Best Use Cases

Mini‑ITX or low‑profile builds: When the only free PCIe slot is an x1, this adapter lets you install an x16 SAS controller, capture card, or similar. Using low‑profile cards in standard ATX cases: The included bracket ensures proper fitment for low‑profile cards in full‑height slots. Budget expansion: Avoid the expense of a new motherboard or card if you only need occasional use of an x16 card. Not recommended for: High‑bandwidth GPUs — the x1 electrical connection will bottleneck performance severely.

Product Disclosure (Amazon)

  • Manufacturer: StarTech.com(スターテック)
  • Seller: Startech Japan KK
  • Fulfilled by: Amazon
  • ASIN: B0039XPS5W
  • Note: This article covers a manufacturer-made product based on Amazon listing details.