Which credential technology and Wiegand protocol does each reader support?

The 5365EGP00 reads 125 kHz proximity cards and fobs — the most widely deployed legacy credential format in North America — and outputs data over SIA 26-bit Wiegand, the near-universal standard understood by virtually every legacy and modern access control panel without configuration changes.

The 40NKS-00-000000 reads EM 32-bit proximity credentials conforming to ISO/IEC 11784/11785 and outputs 32-bit Wiegand MSB. The 32-bit card number space reduces the risk of card-number collisions in large or multi-site deployments compared to the 26-bit space (which tops out at 65,535 unique IDs per facility code). However, 32-bit Wiegand MSB requires explicit panel support — not all legacy controllers accept it natively. Buyers must verify panel compatibility before specifying the 40NKS-00-000000 in a retrofit.

One additional credential note: the 5365EGP00 spec lists MIFARE and HID credentials alongside 125 kHz Prox in the credential_type field, though the primary spec and tagline consistently describe it as a 125 kHz reader. Buyers should consult the datasheet (/content/product-datasheets/5365EGP00.pdf) to confirm which credential types are actually supported versus listed as field-level metadata. The 40NKS-00-000000 spec also references NFC/BLE, SEOS profile, and Smart profile in one field, but the primary specs consistently describe it as an EM proximity reader — again, datasheet verification is advised.

How do mounting style, physical dimensions, and wiring options affect installation?

The 5365EGP00 is purpose-built for mullion mounting: its 6.0" × 1.7" × 1.0" profile fits the narrow vertical edge of aluminum door frames without custom brackets or wall boxes. It ships with a built-in tamper switch, eliminating the need for a separate tamper sensor and reducing field wiring labor. Connectivity is wired; no further wiring method detail is specified in the provided specs.

The 40NKS-00-000000 is a surface-mount wall reader. Its specified dimensions — 80" × 121.5" × 19.5" — appear inconsistent with a handheld card reader and are likely a data entry error; buyers must confirm actual dimensions from the datasheet (/content/product-datasheets/40NKS-00-000000.pdf) before planning rough-in. The mounting spec notes both flush mount terminal block and pigtail wiring options, providing flexibility for conduit or direct-wire installations. The unit mounts to a standard single-gang or proprietary backbox on a wall surface, making it suitable for lobbies, controlled doors, and high-traffic lanes where a recessed or mullion form factor is not required.

For narrow-frame or glass-partition door environments, the 5365EGP00's mullion profile is the decisive fit advantage. For standard drywall or concrete wall installations where a conventional reader silhouette is preferred, the 40NKS-00-000000's surface-mount design is the natural choice.

What are the power requirements, user feedback features, and environmental ratings?

The 5365EGP00 operates on 5 VDC per the provided specs. No additional power options (e.g., 12 VDC or PoE) are listed. No LED color scheme, buzzer, or audible feedback details are specified beyond the tamper switch notification. No environmental rating (IP or IK code, indoor/outdoor classification) is stated in the provided specs.

The 40NKS-00-000000 accepts either PoE or 12 VDC power, giving installers flexibility: PoE simplifies home-run cabling to an IDF closet without a separate power supply run, while 12 VDC suits panels with onboard reader power. User feedback is explicitly specified: a green LED plus buzzer on valid read, and a red LED for status — meaningful for high-traffic entries where users need immediate confirmation. The environment spec states Indoor / Outdoor, indicating the unit is rated for exterior use, though no specific IP rating is provided in the supplied data.

On power and feedback, the 40NKS-00-000000 holds a clear advantage: dual power options reduce infrastructure cost in new construction, and the integrated LED/buzzer feedback set is documented. The 5365EGP00's 5 VDC-only supply and absence of documented feedback specs are factors to verify against your panel's reader port output voltage before ordering.

Which should you choose: the 5365EGP00 or the 40NKS-00-000000?

Our take: The 5365EGP00 is the stronger choice when you are retrofitting a legacy 26-bit Wiegand panel, need to mount on a narrow door mullion, and your installed credential base is 125 kHz proximity. Its 6.0" × 1.7" × 1.0" mullion profile and native SIA 26-bit output require zero panel reconfiguration on virtually any existing controller, and the built-in tamper switch reduces field wiring steps. The 40NKS-00-000000 is the better specification when the panel supports 32-bit Wiegand MSB, credentials are EM ISO/IEC 11784/11785, the installation is a standard wall surface, and PoE infrastructure is available — its integrated green LED plus buzzer feedback and Indoor/Outdoor rating add operational and environmental value the 5365EGP00 specs do not document. Note that the 40NKS-00-000000's published dimensions appear erroneous and must be confirmed via datasheet before rough-in planning.

Side-by-Side Comparison

Spec-for-spec, from manufacturer data.

Frequently Asked Questions

Related Resources

• HID 5365EGP00 product page — full specs and to add to a quote
• HID 40NKS-00-000000 product page — full specs and to add to a quote